100232031 has 4 divisors (see below), whose sum is σ = 133642712. Its totient is φ = 66821352.

The previous prime is 100232023. The next prime is 100232053. The reversal of 100232031 is 130232001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 100232031 - 2³ = 100232023 is a prime.

It is a super-2 number, since 2×100232031² = 20092920076769922, 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 = 100231998 and 100232016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100232831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16705336 + ... + 16705341.

It is an arithmetic number, because the mean of its divisors is an integer number (33410678).

Almost surely, 2^100232031 is an apocalyptic number.

100232031 is a deficient number, since it is larger than the sum of its proper divisors (33410681).

100232031 is an equidigital number, since it uses as much as digits as its factorization.

100232031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33410680.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 100232031 is about 10011.5948279982. The cubic root of 100232031 is about 464.5176035564.

Adding to 100232031 its reverse (130232001), we get a palindrome (230464032).

It can be divided in two parts, 1002 and 32031, that added together give a palindrome (33033).

The spelling of 100232031 in words is "one hundred million, two hundred thirty-two thousand, thirty-one".