30203321313 has 16 divisors (see below), whose sum is σ = 44006973696. Its totient is φ = 18273847440.

The previous prime is 30203321299. The next prime is 30203321341. The reversal of 30203321313 is 31312330203.

It is not a de Polignac number, because 30203321313 - 2¹⁰ = 30203320289 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30203321313.

It is not an unprimeable number, because it can be changed into a prime (30203321383) 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, 760231 + ... + 798972.

It is an arithmetic number, because the mean of its divisors is an integer number (2750435856).

Almost surely, 2^30203321313 is an apocalyptic number.

30203321313 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

30203321313 is a deficient number, since it is larger than the sum of its proper divisors (13803652383).

30203321313 is a wasteful number, since it uses less digits than its factorization.

30203321313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1559804.

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 30203321313 its reverse (31312330203), we get a palindrome (61515651516).

The spelling of 30203321313 in words is "thirty billion, two hundred three million, three hundred twenty-one thousand, three hundred thirteen".