100215004431 has 4 divisors (see below), whose sum is σ = 133620005912. Its totient is φ = 66810002952.

The previous prime is 100215004411. The next prime is 100215004447. The reversal of 100215004431 is 134400512001.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 100215004431 - 2⁵ = 100215004399 is a prime.

It is a super-2 number, since 2×100215004431² (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 = 100215004398 and 100215004407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100215004411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16702500736 + ... + 16702500741.

It is an arithmetic number, because the mean of its divisors is an integer number (33405001478).

Almost surely, 2^100215004431 is an apocalyptic number.

100215004431 is a deficient number, since it is larger than the sum of its proper divisors (33405001481).

100215004431 is an equidigital number, since it uses as much as digits as its factorization.

100215004431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33405001480.

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 100215004431 its reverse (134400512001), we get a palindrome (234615516432).

The spelling of 100215004431 in words is "one hundred billion, two hundred fifteen million, four thousand, four hundred thirty-one".