31031023022213 has 8 divisors (see below), whose sum is σ = 31752903151200. Its totient is φ = 30309153276528.

The previous prime is 31031023022203. The next prime is 31031023022221. The reversal of 31031023022213 is 31222032013013.

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 31031023022213 - 2⁶ = 31031023022149 is a prime.

It is a super-2 number, since 2×31031023022213² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31031023022203) 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, 3622043 + ... + 8670711.

It is an arithmetic number, because the mean of its divisors is an integer number (3969112893900).

Almost surely, 2^{31031023022213} is an apocalyptic number.

It is an amenable number.

31031023022213 is a deficient number, since it is larger than the sum of its proper divisors (721880128987).

31031023022213 is a wasteful number, since it uses less digits than its factorization.

31031023022213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5191651.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 31031023022213 its reverse (31222032013013), we get a palindrome (62253055035226).

The spelling of 31031023022213 in words is "thirty-one trillion, thirty-one billion, twenty-three million, twenty-two thousand, two hundred thirteen".