231021311032 has 8 divisors (see below), whose sum is σ = 433164958200. Its totient is φ = 115510655512.

The previous prime is 231021311009. The next prime is 231021311051. The reversal of 231021311032 is 230113120132.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14438831932 + ... + 14438831947.

It is an arithmetic number, because the mean of its divisors is an integer number (54145619775).

Almost surely, 2^231021311032 is an apocalyptic number.

It is an amenable number.

231021311032 is a deficient number, since it is larger than the sum of its proper divisors (202143647168).

231021311032 is a wasteful number, since it uses less digits than its factorization.

231021311032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28877663885 (or 28877663881 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 231021311032 its reverse (230113120132), we get a palindrome (461134431164).

The spelling of 231021311032 in words is "two hundred thirty-one billion, twenty-one million, three hundred eleven thousand, thirty-two".