1313260032 has 160 divisors (see below), whose sum is σ = 4060311552. Its totient is φ = 369414144.

The previous prime is 1313260021. The next prime is 1313260057. The reversal of 1313260032 is 2300623131.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 1313259990 and 1313260008.

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, 719473 + ... + 721295.

Almost surely, 2^1313260032 is an apocalyptic number.

1313260032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1313260032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2030155776).

1313260032 is an abundant number, since it is smaller than the sum of its proper divisors (2747051520).

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

1313260032 is an equidigital number, since it uses as much as digits as its factorization.

1313260032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1918 (or 1902 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 1313260032 is about 36238.9297855221. The cubic root of 1313260032 is about 1095.0910822674.

Adding to 1313260032 its reverse (2300623131), we get a palindrome (3613883163).

The spelling of 1313260032 in words is "one billion, three hundred thirteen million, two hundred sixty thousand, thirty-two".