20131231124210 has 64 divisors (see below), whose sum is σ = 39024067040640. Its totient is φ = 7449214725120.

The previous prime is 20131231124209. The next prime is 20131231124233. The reversal of 20131231124210 is 1242113213102.

It is a super-2 number, since 2×20131231124210² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66417905 + ... + 66720315.

It is an arithmetic number, because the mean of its divisors is an integer number (609751047510).

Almost surely, 2^{20131231124210} is an apocalyptic number.

20131231124210 is a deficient number, since it is larger than the sum of its proper divisors (18892835916430).

20131231124210 is a wasteful number, since it uses less digits than its factorization.

20131231124210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309131.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 20131231124210 its reverse (1242113213102), we get a palindrome (21373344337312).

The spelling of 20131231124210 in words is "twenty trillion, one hundred thirty-one billion, two hundred thirty-one million, one hundred twenty-four thousand, two hundred ten".