Search a number
-
+
131211221101332 = 22361179250302051
BaseRepresentation
bin11101110101010111111110…
…001110010110101100010100
3122012120200002121012101222220
4131311113332032112230110
5114144231040100220312
61143021334113422340
736431461243201611
oct3565277616265424
9565520077171886
10131211221101332
1138898403707889
121287174456a9b0
13582a21b82c308
14245892aaad508
151028189449c8c
hex7755fe396b14

131211221101332 has 24 divisors (see below), whose sum is σ = 311178524362272. Its totient is φ = 43020072492000.

The previous prime is 131211221101321. The next prime is 131211221101351. The reversal of 131211221101332 is 233101122112131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89625150294 + ... + 89625151757.

It is an arithmetic number, because the mean of its divisors is an integer number (12965771848428).

Almost surely, 2131211221101332 is an apocalyptic number.

131211221101332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131211221101332 is an abundant number, since it is smaller than the sum of its proper divisors (179967303260940).

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

131211221101332 is a wasteful number, since it uses less digits than its factorization.

131211221101332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179250302119 (or 179250302117 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

Adding to 131211221101332 its reverse (233101122112131), we get a palindrome (364312343213463).

The spelling of 131211221101332 in words is "one hundred thirty-one trillion, two hundred eleven billion, two hundred twenty-one million, one hundred one thousand, three hundred thirty-two".

Divisors: 1 2 3 4 6 12 61 122 183 244 366 732 179250302051 358500604102 537750906153 717001208204 1075501812306 2151003624612 10934268425111 21868536850222 32802805275333 43737073700444 65605610550666 131211221101332