1313430623426 has 16 divisors (see below), whose sum is σ = 1995678896640. Its totient is φ = 648209278080.

The previous prime is 1313430623413. The next prime is 1313430623441. The reversal of 1313430623426 is 6243260343131.

It is a super-2 number, since 2×1313430623426² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1313430623426.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 705626 + ... + 1767701.

It is an arithmetic number, because the mean of its divisors is an integer number (124729931040).

Almost surely, 2^{1313430623426} is an apocalyptic number.

1313430623426 is a deficient number, since it is larger than the sum of its proper divisors (682248273214).

1313430623426 is a wasteful number, since it uses less digits than its factorization.

1313430623426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2476769.

The product of its (nonzero) digits is 186624, while the sum is 38.

Adding to 1313430623426 its reverse (6243260343131), we get a palindrome (7556690966557).

The spelling of 1313430623426 in words is "one trillion, three hundred thirteen billion, four hundred thirty million, six hundred twenty-three thousand, four hundred twenty-six".