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23131311013332 = 2233224395487653
BaseRepresentation
bin1010100001001101011011…
…00100110111110111010100
310000220022221211120101221000
411100212231210313313110
511012440411104411312
6121110213320223300
74605116310333444
oct520465544676724
9100808854511830
1023131311013332
117408a30042635
12271700530ab30
13cba3724ab2a2
1459d7c07aa124
152a1a725a6adc
hex1509ad937dd4

23131311013332 has 48 divisors (see below), whose sum is σ = 59996802761280. Its totient is φ = 7706999368224.

The previous prime is 23131311013301. The next prime is 23131311013357. The reversal of 23131311013332 is 23331011313132.

23131311013332 is a `hidden beast` number, since 2 + 3 + 1 + 3 + 1 + 311 + 0 + 13 + 332 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 23131311013296 and 23131311013305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47501583 + ... + 47986070.

It is an arithmetic number, because the mean of its divisors is an integer number (1249933390860).

Almost surely, 223131311013332 is an apocalyptic number.

It is an amenable number.

23131311013332 is an abundant number, since it is smaller than the sum of its proper divisors (36865491747948).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23131311013332 is a wasteful number, since it uses less digits than its factorization.

23131311013332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95489909 (or 95489901 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 27.

Adding to 23131311013332 its reverse (23331011313132), we get a palindrome (46462322326464).

The spelling of 23131311013332 in words is "twenty-three trillion, one hundred thirty-one billion, three hundred eleven million, thirteen thousand, three hundred thirty-two".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 2243 4486 6729 8972 13458 20187 26916 40374 60561 80748 121122 242244 95487653 190975306 286462959 381950612 572925918 859388877 1145851836 1718777754 2578166631 3437555508 5156333262 10312666524 214178805679 428357611358 642536417037 856715222716 1285072834074 1927609251111 2570145668148 3855218502222 5782827753333 7710437004444 11565655506666 23131311013332