1313020303231 has 48 divisors (see below), whose sum is σ = 1733378828160. Its totient is φ = 983102339520.

The previous prime is 1313020303201. The next prime is 1313020303267. The reversal of 1313020303231 is 1323030203131.

It is not a de Polignac number, because 1313020303231 - 2¹³ = 1313020295039 is a prime.

It is a super-2 number, since 2×1313020303231² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313020303201) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10917616 + ... + 11037226.

It is an arithmetic number, because the mean of its divisors is an integer number (36112058920).

Almost surely, 2^{1313020303231} is an apocalyptic number.

1313020303231 is a deficient number, since it is larger than the sum of its proper divisors (420358524929).

1313020303231 is a wasteful number, since it uses less digits than its factorization.

1313020303231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120564 (or 120557 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 1313020303231 its reverse (1323030203131), we get a palindrome (2636050506362).

The spelling of 1313020303231 in words is "one trillion, three hundred thirteen billion, twenty million, three hundred three thousand, two hundred thirty-one".