100040331 has 4 divisors (see below), whose sum is σ = 133387112. Its totient is φ = 66693552.

The previous prime is 100040327. The next prime is 100040333. The reversal of 100040331 is 133040001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133040001 = 3 ⋅44346667.

It is not a de Polignac number, because 100040331 - 2² = 100040327 is a prime.

It is a super-2 number, since 2×100040331² = 20016135653179122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100040333) 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, 16673386 + ... + 16673391.

It is an arithmetic number, because the mean of its divisors is an integer number (33346778).

Almost surely, 2^100040331 is an apocalyptic number.

100040331 is a deficient number, since it is larger than the sum of its proper divisors (33346781).

100040331 is an equidigital number, since it uses as much as digits as its factorization.

100040331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33346780.

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

The square root of 100040331 is about 10002.0163467173. The cubic root of 100040331 is about 464.2212749474.

Adding to 100040331 its reverse (133040001), we get a palindrome (233080332).

The spelling of 100040331 in words is "one hundred million, forty thousand, three hundred thirty-one".