1313033123131 has 4 divisors (see below), whose sum is σ = 1313513914264. Its totient is φ = 1312552332000.

The previous prime is 1313033123113. The next prime is 1313033123173. The reversal of 1313033123131 is 1313213303131.

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 1313033123131 - 2²⁷ = 1312898905403 is a prime.

It is a super-2 number, since 2×1313033123131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1313033123096 and 1313033123105.

It is not an unprimeable number, because it can be changed into a prime (1313033123191) 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, 240391470 + ... + 240396931.

It is an arithmetic number, because the mean of its divisors is an integer number (328378478566).

Almost surely, 2^{1313033123131} is an apocalyptic number.

1313033123131 is a deficient number, since it is larger than the sum of its proper divisors (480791133).

1313033123131 is an equidigital number, since it uses as much as digits as its factorization.

1313033123131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480791132.

The product of its (nonzero) digits is 1458, while the sum is 25.

Adding to 1313033123131 its reverse (1313213303131), we get a palindrome (2626246426262).

The spelling of 1313033123131 in words is "one trillion, three hundred thirteen billion, thirty-three million, one hundred twenty-three thousand, one hundred thirty-one".