31023022223021 has 8 divisors (see below), whose sum is σ = 31103739936000. Its totient is φ = 30942344967120.

The previous prime is 31023022222993. The next prime is 31023022223033. The reversal of 31023022223021 is 12032222032013.

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 31023022223021 - 2¹⁸ = 31023021960877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31023022223041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8578346 + ... + 11646203.

It is an arithmetic number, because the mean of its divisors is an integer number (3887967492000).

Almost surely, 2^{31023022223021} is an apocalyptic number.

It is an amenable number.

31023022223021 is a deficient number, since it is larger than the sum of its proper divisors (80717712979).

31023022223021 is a wasteful number, since it uses less digits than its factorization.

31023022223021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20228539.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 31023022223021 its reverse (12032222032013), we get a palindrome (43055244255034).

The spelling of 31023022223021 in words is "thirty-one trillion, twenty-three billion, twenty-two million, two hundred twenty-three thousand, twenty-one".