20125461054123 has 16 divisors (see below), whose sum is σ = 29943461377440. Its totient is φ = 13359390452352.

The previous prime is 20125461054077. The next prime is 20125461054143. The reversal of 20125461054123 is 32145016452102.

20125461054123 is a `hidden beast` number, since 2 + 0 + 1 + 2 + 54 + 61 + 0 + 541 + 2 + 3 = 666.

It is not a de Polignac number, because 20125461054123 - 2²⁴ = 20125444276907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20125461054143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1599537586 + ... + 1599550167.

It is an arithmetic number, because the mean of its divisors is an integer number (1871466336090).

Almost surely, 2^{20125461054123} is an apocalyptic number.

20125461054123 is a deficient number, since it is larger than the sum of its proper divisors (9818000323317).

20125461054123 is a wasteful number, since it uses less digits than its factorization.

20125461054123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3199087995 (or 3199087989 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The spelling of 20125461054123 in words is "twenty trillion, one hundred twenty-five billion, four hundred sixty-one million, fifty-four thousand, one hundred twenty-three".