231213140212100 has 144 divisors (see below), whose sum is σ = 505240112094480. Its totient is φ = 91841353728000.

The previous prime is 231213140212081. The next prime is 231213140212123. The reversal of 231213140212100 is 1212041312132.

It can be written as a sum of positive squares in 24 ways, for example, as 54197512714816 + 177015627497284 = 7361896^2 + 13304722^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13651354832 + ... + 13651371768.

It is an arithmetic number, because the mean of its divisors is an integer number (3508611889545).

Almost surely, 2^{231213140212100} is an apocalyptic number.

231213140212100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231213140212100 is an abundant number, since it is smaller than the sum of its proper divisors (274026971882380).

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

231213140212100 is a wasteful number, since it uses less digits than its factorization.

231213140212100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18858 (or 18851 counting only the distinct ones).

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

Adding to 231213140212100 its reverse (1212041312132), we get a palindrome (232425181524232).

The spelling of 231213140212100 in words is "two hundred thirty-one trillion, two hundred thirteen billion, one hundred forty million, two hundred twelve thousand, one hundred".