1313531430 has 16 divisors (see below), whose sum is σ = 3152475504. Its totient is φ = 350275040.

The previous prime is 1313531393. The next prime is 1313531437. The reversal of 1313531430 is 341353131.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1313531430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313531437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21892161 + ... + 21892220.

It is an arithmetic number, because the mean of its divisors is an integer number (197029719).

Almost surely, 2^1313531430 is an apocalyptic number.

1313531430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1313531430 is an abundant number, since it is smaller than the sum of its proper divisors (1838944074).

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

1313531430 is a wasteful number, since it uses less digits than its factorization.

1313531430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43784391.

The product of its (nonzero) digits is 1620, while the sum is 24.

The square root of 1313531430 is about 36242.6741563036. The cubic root of 1313531430 is about 1095.1665141573.

Adding to 1313531430 its reverse (341353131), we get a palindrome (1654884561).

The spelling of 1313531430 in words is "one billion, three hundred thirteen million, five hundred thirty-one thousand, four hundred thirty".