18020602313 has 8 divisors (see below), whose sum is σ = 20595789120. Its totient is φ = 15445619280.

The previous prime is 18020602309. The next prime is 18020602333. The reversal of 18020602313 is 31320602081.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18020602313 - 2² = 18020602309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18020602333) 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, 297143 + ... + 352611.

It is an arithmetic number, because the mean of its divisors is an integer number (2574473640).

Almost surely, 2^18020602313 is an apocalyptic number.

It is an amenable number.

18020602313 is a deficient number, since it is larger than the sum of its proper divisors (2575186807).

18020602313 is an equidigital number, since it uses as much as digits as its factorization.

18020602313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101887.

The product of its (nonzero) digits is 1728, while the sum is 26.

The spelling of 18020602313 in words is "eighteen billion, twenty million, six hundred two thousand, three hundred thirteen".