31031032020313 has 8 divisors (see below), whose sum is σ = 34870992504768. Its totient is φ = 27398636967504.

The previous prime is 31031032020299. The next prime is 31031032020319. The reversal of 31031032020313 is 31302023013013.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31031032020313 - 2¹⁷ = 31031031889241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31031032020319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51891357595 + ... + 51891358192.

It is an arithmetic number, because the mean of its divisors is an integer number (4358874063096).

Almost surely, 2^{31031032020313} is an apocalyptic number.

It is an amenable number.

31031032020313 is a deficient number, since it is larger than the sum of its proper divisors (3839960484455).

31031032020313 is a wasteful number, since it uses less digits than its factorization.

31031032020313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103782715823.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 31031032020313 its reverse (31302023013013), we get a palindrome (62333055033326).

The spelling of 31031032020313 in words is "thirty-one trillion, thirty-one billion, thirty-two million, twenty thousand, three hundred thirteen".