1304445031021 has 8 divisors (see below), whose sum is σ = 1423273809888. Its totient is φ = 1185656730000.

The previous prime is 1304445031013. The next prime is 1304445031061. The reversal of 1304445031021 is 1201305444031.

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 1304445031021 - 2³ = 1304445031013 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 (1304445031061) 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, 10052055 + ... + 10180996.

It is an arithmetic number, because the mean of its divisors is an integer number (177909226236).

Almost surely, 2^{1304445031021} is an apocalyptic number.

1304445031021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1304445031021 is a deficient number, since it is larger than the sum of its proper divisors (118828778867).

1304445031021 is a wasteful number, since it uses less digits than its factorization.

1304445031021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20238923.

The product of its (nonzero) digits is 5760, while the sum is 28.

The spelling of 1304445031021 in words is "one trillion, three hundred four billion, four hundred forty-five million, thirty-one thousand, twenty-one".