100031233 has 4 divisors (see below), whose sum is σ = 100176688. Its totient is φ = 99885780.

The previous prime is 100031189. The next prime is 100031263. The reversal of 100031233 is 332130001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100031233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100031263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71691 + ... + 73072.

It is an arithmetic number, because the mean of its divisors is an integer number (25044172).

Almost surely, 2^100031233 is an apocalyptic number.

It is an amenable number.

100031233 is a deficient number, since it is larger than the sum of its proper divisors (145455).

100031233 is an equidigital number, since it uses as much as digits as its factorization.

100031233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145454.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 100031233 is about 10001.5615280815. The cubic root of 100031233 is about 464.2072019125.

Adding to 100031233 its reverse (332130001), we get a palindrome (432161234).

It can be divided in two parts, 10003 and 1233, that added together give a square (11236 = 106²).

The spelling of 100031233 in words is "one hundred million, thirty-one thousand, two hundred thirty-three".