20112511014 has 12 divisors (see below), whose sum is σ = 43577107236. Its totient is φ = 6704170332.

The previous prime is 20112510973. The next prime is 20112511021. The reversal of 20112511014 is 41011521102.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1117361723 = 20112511014 / (2 + 0 + 1 + 1 + 2 + 5 + 1 + 1 + 0 + 1 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 558680844 + ... + 558680879.

It is an arithmetic number, because the mean of its divisors is an integer number (3631425603).

Almost surely, 2^20112511014 is an apocalyptic number.

20112511014 is an abundant number, since it is smaller than the sum of its proper divisors (23464596222).

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

20112511014 is a wasteful number, since it uses less digits than its factorization.

20112511014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1117361731 (or 1117361728 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

The spelling of 20112511014 in words is "twenty billion, one hundred twelve million, five hundred eleven thousand, fourteen".