1313022010331 has 4 divisors (see below), whose sum is σ = 1390258599192. Its totient is φ = 1235785421472.

The previous prime is 1313022010309. The next prime is 1313022010367. The reversal of 1313022010331 is 1330102203131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1313022010331 is a prime.

It is a super-2 number, since 2×1313022010331² (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 (1313022010631) 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, 38618294405 + ... + 38618294438.

It is an arithmetic number, because the mean of its divisors is an integer number (347564649798).

Almost surely, 2^{1313022010331} is an apocalyptic number.

1313022010331 is a deficient number, since it is larger than the sum of its proper divisors (77236588861).

1313022010331 is an equidigital number, since it uses as much as digits as its factorization.

1313022010331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77236588860.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 1313022010331 its reverse (1330102203131), we get a palindrome (2643124213462).

The spelling of 1313022010331 in words is "one trillion, three hundred thirteen billion, twenty-two million, ten thousand, three hundred thirty-one".