1371322812421 has 8 divisors (see below), whose sum is σ = 1391928927264. Its totient is φ = 1350720774480.

The previous prime is 1371322812347. The next prime is 1371322812451. The reversal of 1371322812421 is 1242182231731.

It is a happy number.

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 1371322812421 - 2¹⁵ = 1371322779653 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 (1371322812451) 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, 338050 + ... + 1690243.

It is an arithmetic number, because the mean of its divisors is an integer number (173991115908).

Almost surely, 2^{1371322812421} is an apocalyptic number.

It is an amenable number.

1371322812421 is a deficient number, since it is larger than the sum of its proper divisors (20606114843).

1371322812421 is a wasteful number, since it uses less digits than its factorization.

1371322812421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2038451.

The product of its digits is 32256, while the sum is 37.

The spelling of 1371322812421 in words is "one trillion, three hundred seventy-one billion, three hundred twenty-two million, eight hundred twelve thousand, four hundred twenty-one".