1313031233331 has 6 divisors (see below), whose sum is σ = 1896600670380. Its totient is φ = 875354155548.

The previous prime is 1313031233321. The next prime is 1313031233351. The reversal of 1313031233331 is 1333321303131.

1313031233331 is a `hidden beast` number, since 1 + 3 + 1 + 303 + 1 + 23 + 3 + 331 = 666.

It is not a de Polignac number, because 1313031233331 - 2²⁹ = 1312494362419 is a prime.

It is a super-2 number, since 2×1313031233331² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1313031233295 and 1313031233304.

It is not an unprimeable number, because it can be changed into a prime (1313031233321) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 72946179621 + ... + 72946179638.

It is an arithmetic number, because the mean of its divisors is an integer number (316100111730).

Almost surely, 2^{1313031233331} is an apocalyptic number.

1313031233331 is a deficient number, since it is larger than the sum of its proper divisors (583569437049).

1313031233331 is a wasteful number, since it uses less digits than its factorization.

1313031233331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145892359265 (or 145892359262 counting only the distinct ones).

The product of its (nonzero) digits is 4374, while the sum is 27.

Adding to 1313031233331 its reverse (1333321303131), we get a palindrome (2646352536462).

The spelling of 1313031233331 in words is "one trillion, three hundred thirteen billion, thirty-one million, two hundred thirty-three thousand, three hundred thirty-one".