1331213032 has 8 divisors (see below), whose sum is σ = 2496024450. Its totient is φ = 665606512.

The previous prime is 1331213011. The next prime is 1331213063. The reversal of 1331213032 is 2303121331.

It can be written as a sum of positive squares in only one way, i.e., 1082015236 + 249197796 = 32894^2 + 15786^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83200807 + ... + 83200822.

Almost surely, 2^1331213032 is an apocalyptic number.

It is an amenable number.

1331213032 is a deficient number, since it is larger than the sum of its proper divisors (1164811418).

1331213032 is a wasteful number, since it uses less digits than its factorization.

1331213032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166401635 (or 166401631 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 1331213032 is about 36485.7921936745. The cubic root of 1331213032 is about 1100.0586833707.

Adding to 1331213032 its reverse (2303121331), we get a palindrome (3634334363).

The spelling of 1331213032 in words is "one billion, three hundred thirty-one million, two hundred thirteen thousand, thirty-two".