31122223023 has 8 divisors (see below), whose sum is σ = 41517273600. Its totient is φ = 20737660568.

The previous prime is 31122223021. The next prime is 31122223037. The reversal of 31122223023 is 32032222113.

It is a happy number.

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 31122223023 - 2¹ = 31122223021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31122223021) 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, 2615103 + ... + 2626976.

It is an arithmetic number, because the mean of its divisors is an integer number (5189659200).

Almost surely, 2^31122223023 is an apocalyptic number.

31122223023 is a deficient number, since it is larger than the sum of its proper divisors (10395050577).

31122223023 is a wasteful number, since it uses less digits than its factorization.

31122223023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5244061.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 31122223023 its reverse (32032222113), we get a palindrome (63154445136).

The spelling of 31122223023 in words is "thirty-one billion, one hundred twenty-two million, two hundred twenty-three thousand, twenty-three".