108100217731 has 16 divisors (see below), whose sum is σ = 119785655808. Its totient is φ = 96735902400.

The previous prime is 108100217713. The next prime is 108100217747. The reversal of 108100217731 is 137712001801.

It is a cyclic number.

It is not a de Polignac number, because 108100217731 - 2²¹ = 108098120579 is a prime.

It is a super-2 number, since 2×108100217731² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 108100217693 and 108100217702.

It is not an unprimeable number, because it can be changed into a prime (108100217531) 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, 96450 + ... + 474871.

It is an arithmetic number, because the mean of its divisors is an integer number (7486603488).

Almost surely, 2^108100217731 is an apocalyptic number.

108100217731 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

108100217731 is a deficient number, since it is larger than the sum of its proper divisors (11685438077).

108100217731 is a wasteful number, since it uses less digits than its factorization.

108100217731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571602.

The product of its (nonzero) digits is 2352, while the sum is 31.

The spelling of 108100217731 in words is "one hundred eight billion, one hundred million, two hundred seventeen thousand, seven hundred thirty-one".