7890321303013 has 4 divisors (see below), whose sum is σ = 7900221330540. Its totient is φ = 7880421275488.

The previous prime is 7890321302993. The next prime is 7890321303031. The reversal of 7890321303013 is 3103031230987.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4343193545089 + 3547127757924 = 2084033^2 + 1883382^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7890321303013 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 (7890321303313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4950012568 + ... + 4950014161.

It is an arithmetic number, because the mean of its divisors is an integer number (1975055332635).

Almost surely, 2^{7890321303013} is an apocalyptic number.

It is an amenable number.

7890321303013 is a deficient number, since it is larger than the sum of its proper divisors (9900027527).

7890321303013 is an equidigital number, since it uses as much as digits as its factorization.

7890321303013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9900027526.

The product of its (nonzero) digits is 81648, while the sum is 40.

The spelling of 7890321303013 in words is "seven trillion, eight hundred ninety billion, three hundred twenty-one million, three hundred three thousand, thirteen".