613520117231 has 24 divisors (see below), whose sum is σ = 716079600000. Its totient is φ = 524113181424.

The previous prime is 613520117173. The next prime is 613520117251. The reversal of 613520117231 is 132711025316.

It is not a de Polignac number, because 613520117231 - 2³⁴ = 596340248047 is a prime.

It is a super-2 number, since 2×613520117231² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613520117251) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27826910 + ... + 27848948.

It is an arithmetic number, because the mean of its divisors is an integer number (29836650000).

Almost surely, 2^613520117231 is an apocalyptic number.

613520117231 is a deficient number, since it is larger than the sum of its proper divisors (102559482769).

613520117231 is a wasteful number, since it uses less digits than its factorization.

613520117231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23931 (or 23924 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 32.

The spelling of 613520117231 in words is "six hundred thirteen billion, five hundred twenty million, one hundred seventeen thousand, two hundred thirty-one".