1313022132 has 72 divisors (see below), whose sum is σ = 3699259200. Its totient is φ = 390244608.

The previous prime is 1313022131. The next prime is 1313022197. The reversal of 1313022132 is 2312203131.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313022131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44832 + ... + 68087.

It is an arithmetic number, because the mean of its divisors is an integer number (51378600).

Almost surely, 2^1313022132 is an apocalyptic number.

1313022132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1313022132 is an abundant number, since it is smaller than the sum of its proper divisors (2386237068).

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

1313022132 is a wasteful number, since it uses less digits than its factorization.

1313022132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112965 (or 112960 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1313022132 is about 36235.6472551547. The cubic root of 1313022132 is about 1095.0249522055.

Adding to 1313022132 its reverse (2312203131), we get a palindrome (3625225263).

The spelling of 1313022132 in words is "one billion, three hundred thirteen million, twenty-two thousand, one hundred thirty-two".