100311431 has 12 divisors (see below), whose sum is σ = 115497864. Its totient is φ = 86389200.

The previous prime is 100311413. The next prime is 100311439. The reversal of 100311431 is 134113001.

It is not a de Polignac number, because 100311431 - 2²⁶ = 33202567 is a prime.

It is a super-2 number, since 2×100311431² = 20124766378535522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100311439) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8660 + ... + 16601.

It is an arithmetic number, because the mean of its divisors is an integer number (9624822).

Almost surely, 2^100311431 is an apocalyptic number.

100311431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

100311431 is a deficient number, since it is larger than the sum of its proper divisors (15186433).

100311431 is a wasteful number, since it uses less digits than its factorization.

100311431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25310 (or 25291 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 100311431 is about 10015.5594451833. The cubic root of 100311431 is about 464.6402289042.

Adding to 100311431 its reverse (134113001), we get a palindrome (234424432).

The spelling of 100311431 in words is "one hundred million, three hundred eleven thousand, four hundred thirty-one".