11900331 has 8 divisors (see below), whose sum is σ = 17630160. Its totient is φ = 7933536.

The previous prime is 11900321. The next prime is 11900351. The reversal of 11900331 is 13300911.

It is not a de Polignac number, because 11900331 - 2²¹ = 9803179 is a prime.

It is a super-2 number, since 2×11900331² = 283235755819122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11900321) 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, 220350 + ... + 220403.

It is an arithmetic number, because the mean of its divisors is an integer number (2203770).

Almost surely, 2^11900331 is an apocalyptic number.

11900331 is a deficient number, since it is larger than the sum of its proper divisors (5729829).

11900331 is an equidigital number, since it uses as much as digits as its factorization.

11900331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440762 (or 440756 counting only the distinct ones).

The product of its (nonzero) digits is 81, while the sum is 18.

The square root of 11900331 is about 3449.6856378517. The cubic root of 11900331 is about 228.3072381542.

The spelling of 11900331 in words is "eleven million, nine hundred thousand, three hundred thirty-one".