11331397 has 12 divisors (see below), whose sum is σ = 14380416. Its totient is φ = 8829240.

The previous prime is 11331389. The next prime is 11331473. The reversal of 11331397 is 79313311.

It is not a de Polignac number, because 11331397 - 2³ = 11331389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11331377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9973 + ... + 11050.

It is an arithmetic number, because the mean of its divisors is an integer number (1198368).

Almost surely, 2^11331397 is an apocalyptic number.

It is an amenable number.

11331397 is a deficient number, since it is larger than the sum of its proper divisors (3049019).

11331397 is a wasteful number, since it uses less digits than its factorization.

11331397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21048 (or 21041 counting only the distinct ones).

The product of its digits is 1701, while the sum is 28.

The square root of 11331397 is about 3366.2140454820. The cubic root of 11331397 is about 224.6093435140.

The spelling of 11331397 in words is "eleven million, three hundred thirty-one thousand, three hundred ninety-seven".