121416200503173 has 12 divisors (see below), whose sum is σ = 175385517512608. Its totient is φ = 80941105408680.

The previous prime is 121416200503097. The next prime is 121416200503183. The reversal of 121416200503173 is 371305002614121.

121416200503173 is a `hidden beast` number, since 1 + 2 + 1 + 416 + 20 + 0 + 50 + 3 + 173 = 666.

It is not a de Polignac number, because 121416200503173 - 2²⁴ = 121416183725957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121416200503183) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 252101065 + ... + 252582222.

Almost surely, 2^{121416200503173} is an apocalyptic number.

It is an amenable number.

121416200503173 is a deficient number, since it is larger than the sum of its proper divisors (53969317009435).

121416200503173 is a wasteful number, since it uses less digits than its factorization.

121416200503173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504710024 (or 504710021 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The spelling of 121416200503173 in words is "one hundred twenty-one trillion, four hundred sixteen billion, two hundred million, five hundred three thousand, one hundred seventy-three".