1331504312 has 32 divisors (see below), whose sum is σ = 2599966080. Its totient is φ = 638561280.

The previous prime is 1331504309. The next prime is 1331504327. The reversal of 1331504312 is 2134051331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4268 + ... + 51780.

It is an arithmetic number, because the mean of its divisors is an integer number (81248940).

Almost surely, 2^1331504312 is an apocalyptic number.

It is an amenable number.

1331504312 is a deficient number, since it is larger than the sum of its proper divisors (1268461768).

1331504312 is a wasteful number, since it uses less digits than its factorization.

1331504312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47663 (or 47659 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 1331504312 is about 36489.7836661167. The cubic root of 1331504312 is about 1100.1389113827.

Adding to 1331504312 its reverse (2134051331), we get a palindrome (3465555643).

The spelling of 1331504312 in words is "one billion, three hundred thirty-one million, five hundred four thousand, three hundred twelve".