1313684311 has 4 divisors (see below), whose sum is σ = 1358983800. Its totient is φ = 1268384824.

The previous prime is 1313684269. The next prime is 1313684327. The reversal of 1313684311 is 1134863131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1313684311 - 2⁹ = 1313683799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313681311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22649701 + ... + 22649758.

It is an arithmetic number, because the mean of its divisors is an integer number (339745950).

Almost surely, 2^1313684311 is an apocalyptic number.

1313684311 is a deficient number, since it is larger than the sum of its proper divisors (45299489).

1313684311 is an equidigital number, since it uses as much as digits as its factorization.

1313684311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45299488.

The product of its digits is 5184, while the sum is 31.

The square root of 1313684311 is about 36244.7832246242. The cubic root of 1313684311 is about 1095.2090010626.

The spelling of 1313684311 in words is "one billion, three hundred thirteen million, six hundred eighty-four thousand, three hundred eleven".