12320222031 has 24 divisors (see below), whose sum is σ = 20292133680. Its totient is φ = 7135693056.

The previous prime is 12320222023. The next prime is 12320222039. The reversal of 12320222031 is 13022202321.

It is an interprime number because it is at equal distance from previous prime (12320222023) and next prime (12320222039).

It is not a de Polignac number, because 12320222031 - 2³ = 12320222023 is a prime.

It is a super-2 number, since 2×12320222031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12320221995 and 12320222013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12320222039) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3095101 + ... + 3099078.

It is an arithmetic number, because the mean of its divisors is an integer number (845505570).

Almost surely, 2^12320222031 is an apocalyptic number.

12320222031 is a deficient number, since it is larger than the sum of its proper divisors (7971911649).

12320222031 is a wasteful number, since it uses less digits than its factorization.

12320222031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6194215 (or 6194212 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 12320222031 its reverse (13022202321), we get a palindrome (25342424352).

The spelling of 12320222031 in words is "twelve billion, three hundred twenty million, two hundred twenty-two thousand, thirty-one".