1331115424 has 24 divisors (see below), whose sum is σ = 2621838240. Its totient is φ = 665251776.

The previous prime is 1331115397. The next prime is 1331115431. The reversal of 1331115424 is 4245111331.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71787 + ... + 88405.

It is an arithmetic number, because the mean of its divisors is an integer number (109243260).

Almost surely, 2^1331115424 is an apocalyptic number.

It is an amenable number.

1331115424 is a deficient number, since it is larger than the sum of its proper divisors (1290722816).

1331115424 is a wasteful number, since it uses less digits than its factorization.

1331115424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19132 (or 19124 counting only the distinct ones).

The product of its digits is 1440, while the sum is 25.

The square root of 1331115424 is about 36484.4545525899. The cubic root of 1331115424 is about 1100.0317963261.

Adding to 1331115424 its reverse (4245111331), we get a palindrome (5576226755).

The spelling of 1331115424 in words is "one billion, three hundred thirty-one million, one hundred fifteen thousand, four hundred twenty-four".