1321610423313 has 16 divisors (see below), whose sum is σ = 1769497994880. Its totient is φ = 877400150016.

The previous prime is 1321610423299. The next prime is 1321610423317. The reversal of 1321610423313 is 3133240161231.

It is a happy number.

It is not a de Polignac number, because 1321610423313 - 2⁶ = 1321610423249 is a prime.

It is a super-2 number, since 2×1321610423313² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1321610423317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2543383 + ... + 3018611.

It is an arithmetic number, because the mean of its divisors is an integer number (110593624680).

Almost surely, 2^{1321610423313} is an apocalyptic number.

It is an amenable number.

1321610423313 is a deficient number, since it is larger than the sum of its proper divisors (447887571567).

1321610423313 is a wasteful number, since it uses less digits than its factorization.

1321610423313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479096.

The product of its (nonzero) digits is 7776, while the sum is 30.

Adding to 1321610423313 its reverse (3133240161231), we get a palindrome (4454850584544).

The spelling of 1321610423313 in words is "one trillion, three hundred twenty-one billion, six hundred ten million, four hundred twenty-three thousand, three hundred thirteen".