30420015013 has 2 divisors, whose sum is σ = 30420015014. Its totient is φ = 30420015012.

The previous prime is 30420014993. The next prime is 30420015071. The reversal of 30420015013 is 31051002403.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28541399364 + 1878615649 = 168942^2 + 43343^2 .

It is a cyclic number.

It is not a de Polignac number, because 30420015013 - 2¹⁷ = 30419883941 is a prime.

It is a super-2 number, since 2×30420015013² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30420012013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15210007506 + 15210007507.

It is an arithmetic number, because the mean of its divisors is an integer number (15210007507).

Almost surely, 2^30420015013 is an apocalyptic number.

It is an amenable number.

30420015013 is a deficient number, since it is larger than the sum of its proper divisors (1).

30420015013 is an equidigital number, since it uses as much as digits as its factorization.

30420015013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 19.

Adding to 30420015013 its reverse (31051002403), we get a palindrome (61471017416).

The spelling of 30420015013 in words is "thirty billion, four hundred twenty million, fifteen thousand, thirteen".