172023705120127 has 32 divisors (see below), whose sum is σ = 202273580703744. Its totient is φ = 143207047699200.

The previous prime is 172023705120119. The next prime is 172023705120133. The reversal of 172023705120127 is 721021507320271.

It is a cyclic number.

It is not a de Polignac number, because 172023705120127 - 2³ = 172023705120119 is a prime.

It is a super-2 number, since 2×172023705120127² (a number of 29 digits) contains 22 as substring.

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 172023705120127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172023705120107) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 415869268 + ... + 416282710.

It is an arithmetic number, because the mean of its divisors is an integer number (6321049396992).

Almost surely, 2^{172023705120127} is an apocalyptic number.

172023705120127 is a deficient number, since it is larger than the sum of its proper divisors (30249875583617).

172023705120127 is a wasteful number, since it uses less digits than its factorization.

172023705120127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416359.

The product of its (nonzero) digits is 82320, while the sum is 40.

The spelling of 172023705120127 in words is "one hundred seventy-two trillion, twenty-three billion, seven hundred five million, one hundred twenty thousand, one hundred twenty-seven".