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231313120102 = 2132787156413
BaseRepresentation
bin1101011101101101010…
…1100001101101100110
3211010001121110000000101
43113123111201231212
512242212124320402
6254132550534314
722466104036231
oct3273325415546
9733047400011
10231313120102
118a110253859
12389b636739a
1318a74763ccc
14b2a4aa4418
15603c4d0b87
hex35db561b66

231313120102 has 8 divisors (see below), whose sum is σ = 347231153376. Its totient is φ = 115569402312.

The previous prime is 231313120043. The next prime is 231313120139. The reversal of 231313120102 is 201021313132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 231313120102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43575553 + ... + 43580860.

It is an arithmetic number, because the mean of its divisors is an integer number (43403894172).

Almost surely, 2231313120102 is an apocalyptic number.

231313120102 is a deficient number, since it is larger than the sum of its proper divisors (115918033274).

231313120102 is a wasteful number, since it uses less digits than its factorization.

231313120102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87157742.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 231313120102 its reverse (201021313132), we get a palindrome (432334433234).

The spelling of 231313120102 in words is "two hundred thirty-one billion, three hundred thirteen million, one hundred twenty thousand, one hundred two".

Divisors: 1 2 1327 2654 87156413 174312826 115656560051 231313120102