100025216731 has 8 divisors (see below), whose sum is σ = 109120774464. Its totient is φ = 90930051720.

The previous prime is 100025216693. The next prime is 100025216771. The reversal of 100025216731 is 137612520001.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100025216731 - 2¹⁵ = 100025183963 is a prime.

It is a super-2 number, since 2×100025216731² (a number of 23 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 100025216731.

It is not an unprimeable number, because it can be changed into a prime (100025216771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 762336 + ... + 883858.

It is an arithmetic number, because the mean of its divisors is an integer number (13640096808).

Almost surely, 2^100025216731 is an apocalyptic number.

100025216731 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

100025216731 is a deficient number, since it is larger than the sum of its proper divisors (9095557733).

100025216731 is a wasteful number, since it uses less digits than its factorization.

100025216731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196361.

The product of its (nonzero) digits is 2520, while the sum is 28.

Adding to 100025216731 its reverse (137612520001), we get a palindrome (237637736732).

The spelling of 100025216731 in words is "one hundred billion, twenty-five million, two hundred sixteen thousand, seven hundred thirty-one".