1312322421321 has 32 divisors (see below), whose sum is σ = 1959690096000. Its totient is φ = 867917453760.

The previous prime is 1312322421281. The next prime is 1312322421341. The reversal of 1312322421321 is 1231242232131.

1312322421321 is a `hidden beast` number, since 1 + 3 + 1 + 232 + 2 + 421 + 3 + 2 + 1 = 666.

It is not a de Polignac number, because 1312322421321 - 2¹⁷ = 1312322290249 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1312322421341) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3001686 + ... + 3410976.

It is an arithmetic number, because the mean of its divisors is an integer number (61240315500).

Almost surely, 2^{1312322421321} is an apocalyptic number.

It is an amenable number.

1312322421321 is a deficient number, since it is larger than the sum of its proper divisors (647367674679).

1312322421321 is a wasteful number, since it uses less digits than its factorization.

1312322421321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410246 (or 410240 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

Adding to 1312322421321 its reverse (1231242232131), we get a palindrome (2543564653452).

The spelling of 1312322421321 in words is "one trillion, three hundred twelve billion, three hundred twenty-two million, four hundred twenty-one thousand, three hundred twenty-one".