1313425606531 has 16 divisors (see below), whose sum is σ = 1362737295360. Its totient is φ = 1264942486080.

The previous prime is 1313425606523. The next prime is 1313425606573. The reversal of 1313425606531 is 1356065243131.

It is a cyclic number.

It is not a de Polignac number, because 1313425606531 - 2³ = 1313425606523 is a prime.

It is a super-2 number, since 2×1313425606531² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1313425606231) 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, 19539726 + ... + 19606828.

It is an arithmetic number, because the mean of its divisors is an integer number (85171080960).

Almost surely, 2^{1313425606531} is an apocalyptic number.

1313425606531 is a deficient number, since it is larger than the sum of its proper divisors (49311688829).

1313425606531 is an equidigital number, since it uses as much as digits as its factorization.

1313425606531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73266.

The product of its (nonzero) digits is 194400, while the sum is 40.

The spelling of 1313425606531 in words is "one trillion, three hundred thirteen billion, four hundred twenty-five million, six hundred six thousand, five hundred thirty-one".