20120511244 has 12 divisors (see below), whose sum is σ = 37064099800. Its totient is φ = 9530768448.

The previous prime is 20120511217. The next prime is 20120511277. The reversal of 20120511244 is 44211502102.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132371709 + ... + 132371860.

Almost surely, 2^20120511244 is an apocalyptic number.

It is an amenable number.

20120511244 is a deficient number, since it is larger than the sum of its proper divisors (16943588556).

20120511244 is a wasteful number, since it uses less digits than its factorization.

20120511244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264743592 (or 264743590 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The spelling of 20120511244 in words is "twenty billion, one hundred twenty million, five hundred eleven thousand, two hundred forty-four".