1313430140 has 24 divisors (see below), whose sum is σ = 3008949552. Its totient is φ = 477610880.

The previous prime is 1313430137. The next prime is 1313430143. The reversal of 1313430140 is 410343131.

It is an interprime number because it is at equal distance from previous prime (1313430137) and next prime (1313430143).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313430143) 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, 2984849 + ... + 2985288.

It is an arithmetic number, because the mean of its divisors is an integer number (125372898).

Almost surely, 2^1313430140 is an apocalyptic number.

1313430140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1313430140 is an abundant number, since it is smaller than the sum of its proper divisors (1695519412).

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

1313430140 is a wasteful number, since it uses less digits than its factorization.

1313430140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5970157 (or 5970155 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1313430140 is about 36241.2767435144. The cubic root of 1313430140 is about 1095.1383630056.

Adding to 1313430140 its reverse (410343131), we get a palindrome (1723773271).

The spelling of 1313430140 in words is "one billion, three hundred thirteen million, four hundred thirty thousand, one hundred forty".