20125111054 has 16 divisors (see below), whose sum is σ = 32008532400. Its totient is φ = 9457271424.

The previous prime is 20125110977. The next prime is 20125111093. The reversal of 20125111054 is 45011152102.

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, 393324 + ... + 441535.

It is an arithmetic number, because the mean of its divisors is an integer number (2000533275).

Almost surely, 2^20125111054 is an apocalyptic number.

20125111054 is a deficient number, since it is larger than the sum of its proper divisors (11883421346).

20125111054 is a wasteful number, since it uses less digits than its factorization.

20125111054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835587.

The product of its (nonzero) digits is 400, while the sum is 22.

Adding to 20125111054 its reverse (45011152102), we get a palindrome (65136263156).

The spelling of 20125111054 in words is "twenty billion, one hundred twenty-five million, one hundred eleven thousand, fifty-four".