203131232122 has 16 divisors (see below), whose sum is σ = 375011505792. Its totient is φ = 80359608240.

The previous prime is 203131232111. The next prime is 203131232131. The reversal of 203131232122 is 221232131302.

203131232122 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 203131232093 and 203131232102.

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, 558052654 + ... + 558053017.

It is an arithmetic number, because the mean of its divisors is an integer number (23438219112).

Almost surely, 2^203131232122 is an apocalyptic number.

203131232122 is a deficient number, since it is larger than the sum of its proper divisors (171880273670).

203131232122 is a wasteful number, since it uses less digits than its factorization.

203131232122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1116105693.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 203131232122 its reverse (221232131302), we get a palindrome (424363363424).

The spelling of 203131232122 in words is "two hundred three billion, one hundred thirty-one million, two hundred thirty-two thousand, one hundred twenty-two".