20200124512 has 48 divisors (see below), whose sum is σ = 41876654400. Its totient is φ = 9565153920.

The previous prime is 20200124471. The next prime is 20200124617. The reversal of 20200124512 is 21542100202.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 20200124512.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3291687 + ... + 3297817.

It is an arithmetic number, because the mean of its divisors is an integer number (872430300).

Almost surely, 2^20200124512 is an apocalyptic number.

It is an amenable number.

20200124512 is an abundant number, since it is smaller than the sum of its proper divisors (21676529888).

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

20200124512 is a wasteful number, since it uses less digits than its factorization.

20200124512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11579 (or 11571 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

Adding to 20200124512 its reverse (21542100202), we get a palindrome (41742224714).

The spelling of 20200124512 in words is "twenty billion, two hundred million, one hundred twenty-four thousand, five hundred twelve".