203131211132 has 12 divisors (see below), whose sum is σ = 355546994880. Its totient is φ = 101546355456.

The previous prime is 203131211123. The next prime is 203131211189. The reversal of 203131211132 is 231112131302.

It is a happy number.

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, 4788773 + ... + 4831004.

It is an arithmetic number, because the mean of its divisors is an integer number (29628916240).

Almost surely, 2^203131211132 is an apocalyptic number.

It is an amenable number.

203131211132 is a deficient number, since it is larger than the sum of its proper divisors (152415783748).

203131211132 is a wasteful number, since it uses less digits than its factorization.

203131211132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9625060 (or 9625058 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 203131211132 its reverse (231112131302), we get a palindrome (434243342434).

The spelling of 203131211132 in words is "two hundred three billion, one hundred thirty-one million, two hundred eleven thousand, one hundred thirty-two".