100312331 has 8 divisors (see below), whose sum is σ = 116586240. Its totient is φ = 84524328.

The previous prime is 100312327. The next prime is 100312337. The reversal of 100312331 is 133213001.

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

It is not a de Polignac number, because 100312331 - 2² = 100312327 is a prime.

It is a super-2 number, since 2×100312331² = 20125127501307122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100312337) 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, 121031 + ... + 121856.

It is an arithmetic number, because the mean of its divisors is an integer number (14573280).

Almost surely, 2^100312331 is an apocalyptic number.

100312331 is a deficient number, since it is larger than the sum of its proper divisors (16273909).

100312331 is an equidigital number, since it uses as much as digits as its factorization.

100312331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242953.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 100312331 is about 10015.6043751738. The cubic root of 100312331 is about 464.6416184931.

Adding to 100312331 its reverse (133213001), we get a palindrome (233525332).

The spelling of 100312331 in words is "one hundred million, three hundred twelve thousand, three hundred thirty-one".