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20231230333131 = 332311324234023
BaseRepresentation
bin1001001100110011100110…
…10011000010000011001011
32122122002100020010111022000
410212121303103002003023
510122432024431130011
6111010033210402043
74155441514306536
oct446316323020313
978562306114260
1020231230333131
1164a0020106804
122328b46130323
13b39a4884cc6c
144dd2a7d31a1d
152513d9e62356
hex1266734c20cb

20231230333131 has 16 divisors (see below), whose sum is σ = 29985162539520. Its totient is φ = 13481650634760.

The previous prime is 20231230333123. The next prime is 20231230333267. The reversal of 20231230333131 is 13133303213202.

20231230333131 is a `hidden beast` number, since 2 + 0 + 2 + 312 + 3 + 0 + 33 + 313 + 1 = 666.

It is not a de Polignac number, because 20231230333131 - 23 = 20231230333123 is a prime.

It is a super-2 number, since 2×202312303331312 (a number of 27 digits) contains 22 as substring.

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 = 20231230333095 and 20231230333104.

It is not an unprimeable number, because it can be changed into a prime (20231230333031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162054615 + ... + 162179408.

It is an arithmetic number, because the mean of its divisors is an integer number (1874072658720).

Almost surely, 220231230333131 is an apocalyptic number.

20231230333131 is a deficient number, since it is larger than the sum of its proper divisors (9753932206389).

20231230333131 is a wasteful number, since it uses less digits than its factorization.

20231230333131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324236343 (or 324236337 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 27.

Adding to 20231230333131 its reverse (13133303213202), we get a palindrome (33364533546333).

The spelling of 20231230333131 in words is "twenty trillion, two hundred thirty-one billion, two hundred thirty million, three hundred thirty-three thousand, one hundred thirty-one".

Divisors: 1 3 9 27 2311 6933 20799 62397 324234023 972702069 2918106207 8754318621 749304827153 2247914481459 6743743444377 20231230333131