20131231010 has 96 divisors (see below), whose sum is σ = 40375480320. Its totient is φ = 7220949120.

The previous prime is 20131230947. The next prime is 20131231013. The reversal of 20131231010 is 1013213102.

It is not an unprimeable number, because it can be changed into a prime (20131231013) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 41336987 + ... + 41337473.

It is an arithmetic number, because the mean of its divisors is an integer number (420577920).

Almost surely, 2^20131231010 is an apocalyptic number.

20131231010 is an abundant number, since it is smaller than the sum of its proper divisors (20244249310).

20131231010 is a wasteful number, since it uses less digits than its factorization.

20131231010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 912 (or 901 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 20131231010 its reverse (1013213102), we get a palindrome (21144444112).

The spelling of 20131231010 in words is "twenty billion, one hundred thirty-one million, two hundred thirty-one thousand, ten".