11380831 has 16 divisors (see below), whose sum is σ = 14427648. Its totient is φ = 8719200.

The previous prime is 11380801. The next prime is 11380843. The reversal of 11380831 is 13808311.

11380831 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11380831 - 2¹⁷ = 11249759 is a prime.

It is a super-2 number, since 2×11380831² = 259046628501122, 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 = 11380796 and 11380805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11380801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3486 + ... + 5908.

It is an arithmetic number, because the mean of its divisors is an integer number (901728).

Almost surely, 2^11380831 is an apocalyptic number.

11380831 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11380831 is a deficient number, since it is larger than the sum of its proper divisors (3046817).

11380831 is a wasteful number, since it uses less digits than its factorization.

11380831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2502.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 11380831 is about 3373.5487250075. The cubic root of 11380831 is about 224.9354942657.

The spelling of 11380831 in words is "eleven million, three hundred eighty thousand, eight hundred thirty-one".