100201331 has 4 divisors (see below), whose sum is σ = 103433664. Its totient is φ = 96969000.

The previous prime is 100201303. The next prime is 100201337. The reversal of 100201331 is 133102001.

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

It is a cyclic number.

It is not a de Polignac number, because 100201331 - 2⁶ = 100201267 is a prime.

It is a super-2 number, since 2×100201331² = 20080613468343122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100201337) 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, 1616120 + ... + 1616181.

It is an arithmetic number, because the mean of its divisors is an integer number (25858416).

Almost surely, 2^100201331 is an apocalyptic number.

100201331 is a deficient number, since it is larger than the sum of its proper divisors (3232333).

100201331 is an equidigital number, since it uses as much as digits as its factorization.

100201331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3232332.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 100201331 is about 10010.0614883226. The cubic root of 100201331 is about 464.4701731209.

Adding to 100201331 its reverse (133102001), we get a palindrome (233303332).

The spelling of 100201331 in words is "one hundred million, two hundred one thousand, three hundred thirty-one".