100343131 has 6 divisors (see below), whose sum is σ = 116725740. Its totient is φ = 86008356.

The previous prime is 100343107. The next prime is 100343137. The reversal of 100343131 is 131343001.

It is not a de Polignac number, because 100343131 - 2⁷ = 100343003 is a prime.

It is a super-2 number, since 2×100343131² = 20137487877766322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100343137) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1023861 + ... + 1023958.

It is an arithmetic number, because the mean of its divisors is an integer number (19454290).

Almost surely, 2^100343131 is an apocalyptic number.

100343131 is a deficient number, since it is larger than the sum of its proper divisors (16382609).

100343131 is an equidigital number, since it uses as much as digits as its factorization.

100343131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2047833 (or 2047826 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 100343131 is about 10017.1418578355. The cubic root of 100343131 is about 464.6891683050.

Adding to 100343131 its reverse (131343001), we get a palindrome (231686132).

The spelling of 100343131 in words is "one hundred million, three hundred forty-three thousand, one hundred thirty-one".