20125105134 has 16 divisors (see below), whose sum is σ = 40252328400. Its totient is φ = 6708015360.

The previous prime is 20125105127. The next prime is 20125105151. The reversal of 20125105134 is 43150152102.

It is a happy number.

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, 52542 + ... + 207390.

It is an arithmetic number, because the mean of its divisors is an integer number (2515770525).

Almost surely, 2^20125105134 is an apocalyptic number.

20125105134 is an abundant number, since it is smaller than the sum of its proper divisors (20127223266).

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

20125105134 is a wasteful number, since it uses less digits than its factorization.

20125105134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176515.

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 20125105134 its reverse (43150152102), we get a palindrome (63275257236).

The spelling of 20125105134 in words is "twenty billion, one hundred twenty-five million, one hundred five thousand, one hundred thirty-four".