231311133002 has 32 divisors (see below), whose sum is σ = 371528683200. Its totient is φ = 107679362688.

The previous prime is 231311132999. The next prime is 231311133019. The reversal of 231311133002 is 200331113132.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8625038 + ... + 8651814.

It is an arithmetic number, because the mean of its divisors is an integer number (11610271350).

Almost surely, 2^231311133002 is an apocalyptic number.

231311133002 is a deficient number, since it is larger than the sum of its proper divisors (140217550198).

231311133002 is a wasteful number, since it uses less digits than its factorization.

231311133002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30710.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 231311133002 its reverse (200331113132), we get a palindrome (431642246134).

The spelling of 231311133002 in words is "two hundred thirty-one billion, three hundred eleven million, one hundred thirty-three thousand, two".