20123447561175 has 48 divisors (see below), whose sum is σ = 38951141467392. Its totient is φ = 8974917369600.

The previous prime is 20123447561167. The next prime is 20123447561219. The reversal of 20123447561175 is 57116574432102.

It is a happy number.

It is not a de Polignac number, because 20123447561175 - 2³ = 20123447561167 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 467422089 + ... + 467465138.

It is an arithmetic number, because the mean of its divisors is an integer number (811482113904).

Almost surely, 2^{20123447561175} is an apocalyptic number.

20123447561175 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20123447561175 is a deficient number, since it is larger than the sum of its proper divisors (18827693906217).

20123447561175 is a wasteful number, since it uses less digits than its factorization.

20123447561175 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 934887288 (or 934887283 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 48.

The spelling of 20123447561175 in words is "twenty trillion, one hundred twenty-three billion, four hundred forty-seven million, five hundred sixty-one thousand, one hundred seventy-five".