100021502317 has 16 divisors (see below), whose sum is σ = 112361001984. Its totient is φ = 88246336000.

The previous prime is 100021502279. The next prime is 100021502363. The reversal of 100021502317 is 713205120001.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 100021502317 - 2²³ = 100013113709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100021502377) 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, 494428 + ... + 666709.

It is an arithmetic number, because the mean of its divisors is an integer number (7022562624).

Almost surely, 2^100021502317 is an apocalyptic number.

It is an amenable number.

100021502317 is a deficient number, since it is larger than the sum of its proper divisors (12339499667).

100021502317 is a wasteful number, since it uses less digits than its factorization.

100021502317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1161380.

The product of its (nonzero) digits is 420, while the sum is 22.

Adding to 100021502317 its reverse (713205120001), we get a palindrome (813226622318).

The spelling of 100021502317 in words is "one hundred billion, twenty-one million, five hundred two thousand, three hundred seventeen".