1311423364621 has 8 divisors (see below), whose sum is σ = 1312987500864. Its totient is φ = 1309859423040.

The previous prime is 1311423364607. The next prime is 1311423364633. The reversal of 1311423364621 is 1264633241131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1311423364621 - 2⁹ = 1311423364109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311423364661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16921666 + ... + 16998988.

It is an arithmetic number, because the mean of its divisors is an integer number (164123437608).

Almost surely, 2^{1311423364621} is an apocalyptic number.

It is an amenable number.

1311423364621 is a deficient number, since it is larger than the sum of its proper divisors (1564136243).

1311423364621 is an equidigital number, since it uses as much as digits as its factorization.

1311423364621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97331.

The product of its digits is 62208, while the sum is 37.

The spelling of 1311423364621 in words is "one trillion, three hundred eleven billion, four hundred twenty-three million, three hundred sixty-four thousand, six hundred twenty-one".