1313563450331 has 16 divisors (see below), whose sum is σ = 1466387290368. Its totient is φ = 1166310952800.

The previous prime is 1313563450319. The next prime is 1313563450343. The reversal of 1313563450331 is 1330543653131.

It is an interprime number because it is at equal distance from previous prime (1313563450319) and next prime (1313563450343).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1313563450331 is a prime.

It is a super-2 number, since 2×1313563450331² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1313563450231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9386285 + ... + 9525201.

It is an arithmetic number, because the mean of its divisors is an integer number (91649205648).

Almost surely, 2^{1313563450331} is an apocalyptic number.

1313563450331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1313563450331 is a deficient number, since it is larger than the sum of its proper divisors (152823840037).

1313563450331 is a wasteful number, since it uses less digits than its factorization.

1313563450331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158962.

The product of its (nonzero) digits is 145800, while the sum is 38.

The spelling of 1313563450331 in words is "one trillion, three hundred thirteen billion, five hundred sixty-three million, four hundred fifty thousand, three hundred thirty-one".