120617165205231 has 12 divisors (see below), whose sum is σ = 163259054548632. Its totient is φ = 79211272663248.

The previous prime is 120617165205211. The next prime is 120617165205253. The reversal of 120617165205231 is 132502561716021.

It is not a de Polignac number, because 120617165205231 - 2¹⁵ = 120617165172463 is a prime.

It is a super-2 number, since 2×120617165205231² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120617165205211) 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, 4478235780 + ... + 4478262713.

It is an arithmetic number, because the mean of its divisors is an integer number (13604921212386).

Almost surely, 2^{120617165205231} is an apocalyptic number.

120617165205231 is a deficient number, since it is larger than the sum of its proper divisors (42641889343401).

120617165205231 is an frugal number, since it uses more digits than its factorization.

120617165205231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8956498630 (or 8956498563 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 42.

The spelling of 120617165205231 in words is "one hundred twenty trillion, six hundred seventeen billion, one hundred sixty-five million, two hundred five thousand, two hundred thirty-one".