11899331 has 4 divisors (see below), whose sum is σ = 12094464. Its totient is φ = 11704200.

The previous prime is 11899291. The next prime is 11899333. The reversal of 11899331 is 13399811.

11899331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11899331 - 2¹⁴ = 11882947 is a prime.

It is a super-2 number, since 2×11899331² = 283188156495122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11899291 and 11899300.

It is not an unprimeable number, because it can be changed into a prime (11899333) 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, 97475 + ... + 97596.

It is an arithmetic number, because the mean of its divisors is an integer number (3023616).

Almost surely, 2^11899331 is an apocalyptic number.

11899331 is a deficient number, since it is larger than the sum of its proper divisors (195133).

11899331 is an equidigital number, since it uses as much as digits as its factorization.

11899331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195132.

The product of its digits is 5832, while the sum is 35.

The square root of 11899331 is about 3449.5406940635. The cubic root of 11899331 is about 228.3008429922.

The spelling of 11899331 in words is "eleven million, eight hundred ninety-nine thousand, three hundred thirty-one".