20232311112 has 128 divisors (see below), whose sum is σ = 61124112000. Its totient is φ = 6163603200.

The previous prime is 20232311087. The next prime is 20232311147. The reversal of 20232311112 is 21111323202.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 247939 + ... + 319277.

It is an arithmetic number, because the mean of its divisors is an integer number (477532125).

Almost surely, 2^20232311112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20232311112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30562056000).

20232311112 is an abundant number, since it is smaller than the sum of its proper divisors (40891800888).

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

20232311112 is a wasteful number, since it uses less digits than its factorization.

20232311112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71468 (or 71458 counting only the distinct ones).

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

Adding to 20232311112 its reverse (21111323202), we get a palindrome (41343634314).

The spelling of 20232311112 in words is "twenty billion, two hundred thirty-two million, three hundred eleven thousand, one hundred twelve".