20112113232 has 60 divisors (see below), whose sum is σ = 56519632884. Its totient is φ = 6676208640.

The previous prime is 20112113183. The next prime is 20112113233. The reversal of 20112113232 is 23231121102.

It can be written as a sum of positive squares in 2 ways, for example, as 13711473216 + 6400640016 = 117096^2 + 80004^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20112113233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 255063 + ... + 324470.

Almost surely, 2^20112113232 is an apocalyptic number.

It is an amenable number.

20112113232 is an abundant number, since it is smaller than the sum of its proper divisors (36407519652).

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

20112113232 is a wasteful number, since it uses less digits than its factorization.

20112113232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579788 (or 579779 counting only the distinct ones).

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

Adding to 20112113232 its reverse (23231121102), we get a palindrome (43343234334).

The spelling of 20112113232 in words is "twenty billion, one hundred twelve million, one hundred thirteen thousand, two hundred thirty-two".