31321230323102 has 16 divisors (see below), whose sum is σ = 47832565988592. Its totient is φ = 15377907534720.

The previous prime is 31321230323083. The next prime is 31321230323153. The reversal of 31321230323102 is 20132303212313.

It is a congruent number.

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, 216395948 + ... + 216540639.

It is an arithmetic number, because the mean of its divisors is an integer number (2989535374287).

Almost surely, 2^{31321230323102} is an apocalyptic number.

31321230323102 is a deficient number, since it is larger than the sum of its proper divisors (16511335665490).

31321230323102 is a wasteful number, since it uses less digits than its factorization.

31321230323102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432937243.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 31321230323102 its reverse (20132303212313), we get a palindrome (51453533535415).

The spelling of 31321230323102 in words is "thirty-one trillion, three hundred twenty-one billion, two hundred thirty million, three hundred twenty-three thousand, one hundred two".