100012431 has 8 divisors (see below), whose sum is σ = 135866160. Its totient is φ = 65416832.

The previous prime is 100012421. The next prime is 100012457. The reversal of 100012431 is 134210001.

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 100012431 - 2²³ = 91623823 is a prime.

It is a super-2 number, since 2×100012431² = 20004972709059522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100012421) 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, 314346 + ... + 314663.

It is an arithmetic number, because the mean of its divisors is an integer number (16983270).

Almost surely, 2^100012431 is an apocalyptic number.

100012431 is a deficient number, since it is larger than the sum of its proper divisors (35853729).

100012431 is an equidigital number, since it uses as much as digits as its factorization.

100012431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629065.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 100012431 is about 10000.6215306850. The cubic root of 100012431 is about 464.1781157613.

Adding to 100012431 its reverse (134210001), we get a palindrome (234222432).

It can be divided in two parts, 1000 and 12431, that added together give a palindrome (13431).

The spelling of 100012431 in words is "one hundred million, twelve thousand, four hundred thirty-one".