31130102330321 has 16 divisors (see below), whose sum is σ = 32167667051520. Its totient is φ = 30106872346320.

The previous prime is 31130102330269. The next prime is 31130102330329. The reversal of 31130102330321 is 12303320103113.

It is a cyclic number.

It is not a de Polignac number, because 31130102330321 - 2³⁸ = 30855224423377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31130102330329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32564756 + ... + 33507066.

It is an arithmetic number, because the mean of its divisors is an integer number (2010479190720).

Almost surely, 2^{31130102330321} is an apocalyptic number.

It is an amenable number.

31130102330321 is a deficient number, since it is larger than the sum of its proper divisors (1037564721199).

31130102330321 is a wasteful number, since it uses less digits than its factorization.

31130102330321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949916.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 31130102330321 its reverse (12303320103113), we get a palindrome (43433422433434).

The spelling of 31130102330321 in words is "thirty-one trillion, one hundred thirty billion, one hundred two million, three hundred thirty thousand, three hundred twenty-one".