123355054171 has 16 divisors (see below), whose sum is σ = 127225668960. Its totient is φ = 119513525760.

The previous prime is 123355054157. The next prime is 123355054177. The reversal of 123355054171 is 171450553321.

It is a cyclic number.

It is not a de Polignac number, because 123355054171 - 2¹⁵ = 123355021403 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123355054171.

It is not an unprimeable number, because it can be changed into a prime (123355054177) 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, 11946691 + ... + 11957011.

It is an arithmetic number, because the mean of its divisors is an integer number (7951604310).

Almost surely, 2^123355054171 is an apocalyptic number.

123355054171 is a deficient number, since it is larger than the sum of its proper divisors (3870614789).

123355054171 is a wasteful number, since it uses less digits than its factorization.

123355054171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11694.

The product of its (nonzero) digits is 63000, while the sum is 37.

The spelling of 123355054171 in words is "one hundred twenty-three billion, three hundred fifty-five million, fifty-four thousand, one hundred seventy-one".