1300390945621 has 16 divisors (see below), whose sum is σ = 1340669944000. Its totient is φ = 1260391466880.

The previous prime is 1300390945619. The next prime is 1300390945643. The reversal of 1300390945621 is 1265490930031.

It is a happy number.

It is not a de Polignac number, because 1300390945621 - 2¹ = 1300390945619 is a prime.

It is a super-2 number, since 2×1300390945621² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1300390945921) 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, 10034881 + ... + 10163641.

It is an arithmetic number, because the mean of its divisors is an integer number (83791871500).

Almost surely, 2^{1300390945621} is an apocalyptic number.

It is an amenable number.

1300390945621 is a deficient number, since it is larger than the sum of its proper divisors (40278998379).

1300390945621 is a wasteful number, since it uses less digits than its factorization.

1300390945621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129844.

The product of its (nonzero) digits is 174960, while the sum is 43.

The spelling of 1300390945621 in words is "one trillion, three hundred billion, three hundred ninety million, nine hundred forty-five thousand, six hundred twenty-one".