30421310013 has 6 divisors (see below), whose sum is σ = 43941892254. Its totient is φ = 20280873336.

The previous prime is 30421310009. The next prime is 30421310033. The reversal of 30421310013 is 31001312403.

It can be written as a sum of positive squares in only one way, i.e., 28655041284 + 1766268729 = 169278^2 + 42027^2 .

It is not a de Polignac number, because 30421310013 - 2² = 30421310009 is a prime.

It is a super-2 number, since 2×30421310013² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30421310033) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1690072770 + ... + 1690072787.

It is an arithmetic number, because the mean of its divisors is an integer number (7323648709).

Almost surely, 2^30421310013 is an apocalyptic number.

It is an amenable number.

30421310013 is a deficient number, since it is larger than the sum of its proper divisors (13520582241).

30421310013 is a wasteful number, since it uses less digits than its factorization.

30421310013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3380145563 (or 3380145560 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 30421310013 its reverse (31001312403), we get a palindrome (61422622416).

The spelling of 30421310013 in words is "thirty billion, four hundred twenty-one million, three hundred ten thousand, thirteen".