20412032112 has 30 divisors (see below), whose sum is σ = 57125340272. Its totient is φ = 6804010656.

The previous prime is 20412032099. The next prime is 20412032117. The reversal of 20412032112 is 21123021402.

It is a happy number.

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 (20412032117) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 70874968 + ... + 70875255.

Almost surely, 2^20412032112 is an apocalyptic number.

It is an amenable number.

20412032112 is an abundant number, since it is smaller than the sum of its proper divisors (36713308160).

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

20412032112 is a wasteful number, since it uses less digits than its factorization.

20412032112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141750237 (or 141750228 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 20412032112 its reverse (21123021402), we get a palindrome (41535053514).

The spelling of 20412032112 in words is "twenty billion, four hundred twelve million, thirty-two thousand, one hundred twelve".