100412031 has 8 divisors (see below), whose sum is σ = 134189440. Its totient is φ = 66787992.

The previous prime is 100412027. The next prime is 100412033. The reversal of 100412031 is 130214001.

It is a happy number.

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

It is not a de Polignac number, because 100412031 - 2² = 100412027 is a prime.

It is a super-2 number, since 2×100412031² = 20165151939089922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100411998 and 100412016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100412033) 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, 36805 + ... + 39438.

It is an arithmetic number, because the mean of its divisors is an integer number (16773680).

Almost surely, 2^100412031 is an apocalyptic number.

100412031 is a deficient number, since it is larger than the sum of its proper divisors (33777409).

100412031 is an equidigital number, since it uses as much as digits as its factorization.

100412031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76685.

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

The square root of 100412031 is about 10020.5803724136. The cubic root of 100412031 is about 464.7955026335.

Adding to 100412031 its reverse (130214001), we get a palindrome (230626032).

The spelling of 100412031 in words is "one hundred million, four hundred twelve thousand, thirty-one".