7320423013 has 4 divisors (see below), whose sum is σ = 7324032940. Its totient is φ = 7316813088.

The previous prime is 7320422983. The next prime is 7320423041. The reversal of 7320423013 is 3103240237.

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 4253257089 + 3067165924 = 65217^2 + 55382^2 .

It is a cyclic number.

It is not a de Polignac number, because 7320423013 - 2⁵ = 7320422981 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 (7320423713) 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, 1801920 + ... + 1805977.

It is an arithmetic number, because the mean of its divisors is an integer number (1831008235).

Almost surely, 2^7320423013 is an apocalyptic number.

It is an amenable number.

7320423013 is a deficient number, since it is larger than the sum of its proper divisors (3609927).

7320423013 is a wasteful number, since it uses less digits than its factorization.

7320423013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3609926.

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 7320423013 is about 85559.4706213170. The cubic root of 7320423013 is about 1941.6847777206.

The spelling of 7320423013 in words is "seven billion, three hundred twenty million, four hundred twenty-three thousand, thirteen".