20223131112 has 64 divisors (see below), whose sum is σ = 56266488000. Its totient is φ = 6730108992.

The previous prime is 20223131017. The next prime is 20223131191. The reversal of 20223131112 is 21113132202.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58078 + ... + 209330.

It is an arithmetic number, because the mean of its divisors is an integer number (879163875).

Almost surely, 2^20223131112 is an apocalyptic number.

It is an amenable number.

20223131112 is an abundant number, since it is smaller than the sum of its proper divisors (36043356888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20223131112 is a wasteful number, since it uses less digits than its factorization.

20223131112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151887 (or 151877 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 20223131112 its reverse (21113132202), we get a palindrome (41336263314).

The spelling of 20223131112 in words is "twenty billion, two hundred twenty-three million, one hundred thirty-one thousand, one hundred twelve".