20125101044 has 6 divisors (see below), whose sum is σ = 35218926834. Its totient is φ = 10062550520.

The previous prime is 20125101023. The next prime is 20125101067. The reversal of 20125101044 is 44010152102.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 19348810000 + 776291044 = 139100^2 + 27862^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2515637627 + ... + 2515637634.

It is an arithmetic number, because the mean of its divisors is an integer number (5869821139).

Almost surely, 2^20125101044 is an apocalyptic number.

It is an amenable number.

20125101044 is a deficient number, since it is larger than the sum of its proper divisors (15093825790).

20125101044 is a wasteful number, since it uses less digits than its factorization.

20125101044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5031275265 (or 5031275263 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

Adding to 20125101044 its reverse (44010152102), we get a palindrome (64135253146).

The spelling of 20125101044 in words is "twenty billion, one hundred twenty-five million, one hundred one thousand, forty-four".