100431212213 has 4 divisors (see below), whose sum is σ = 103670928768. Its totient is φ = 97191495660.

The previous prime is 100431212197. The next prime is 100431212237. The reversal of 100431212213 is 312212134001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 100431212213 - 2⁴ = 100431212197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100431212513) 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, 1619858231 + ... + 1619858292.

It is an arithmetic number, because the mean of its divisors is an integer number (25917732192).

Almost surely, 2^100431212213 is an apocalyptic number.

It is an amenable number.

100431212213 is a deficient number, since it is larger than the sum of its proper divisors (3239716555).

100431212213 is an equidigital number, since it uses as much as digits as its factorization.

100431212213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3239716554.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 100431212213 its reverse (312212134001), we get a palindrome (412643346214).

The spelling of 100431212213 in words is "one hundred billion, four hundred thirty-one million, two hundred twelve thousand, two hundred thirteen".