1311413140 has 24 divisors (see below), whose sum is σ = 2818015200. Its totient is φ = 512365728.

The previous prime is 1311413137. The next prime is 1311413143. The reversal of 1311413140 is 413141131.

It is an interprime number because it is at equal distance from previous prime (1311413137) and next prime (1311413143).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311413143) 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, 761590 + ... + 763309.

It is an arithmetic number, because the mean of its divisors is an integer number (117417300).

Almost surely, 2^1311413140 is an apocalyptic number.

1311413140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1311413140 is an abundant number, since it is smaller than the sum of its proper divisors (1506602060).

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

1311413140 is a wasteful number, since it uses less digits than its factorization.

1311413140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1524951 (or 1524949 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 1311413140 is about 36213.4386657771. The cubic root of 1311413140 is about 1094.5774841054.

Adding to 1311413140 its reverse (413141131), we get a palindrome (1724554271).

The spelling of 1311413140 in words is "one billion, three hundred eleven million, four hundred thirteen thousand, one hundred forty".