1331250232 has 64 divisors (see below), whose sum is σ = 2771485920. Its totient is φ = 595496448.

The previous prime is 1331250227. The next prime is 1331250247. The reversal of 1331250232 is 2320521331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1334758 + ... + 1335754.

Almost surely, 2^1331250232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1331250232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1385742960).

1331250232 is an abundant number, since it is smaller than the sum of its proper divisors (1440235688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1331250232 is a wasteful number, since it uses less digits than its factorization.

1331250232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1400 (or 1396 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 1331250232 is about 36486.3019775915. The cubic root of 1331250232 is about 1100.0689301158.

Adding to 1331250232 its reverse (2320521331), we get a palindrome (3651771563).

The spelling of 1331250232 in words is "one billion, three hundred thirty-one million, two hundred fifty thousand, two hundred thirty-two".