30420305015 has 32 divisors (see below), whose sum is σ = 39775104000. Its totient is φ = 22246697088.

The previous prime is 30420305009. The next prime is 30420305023. The reversal of 30420305015 is 51050302403.

It is a cyclic number.

It is not a de Polignac number, because 30420305015 - 2¹⁸ = 30420042871 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7455746 + ... + 7459824.

It is an arithmetic number, because the mean of its divisors is an integer number (1242972000).

Almost surely, 2^30420305015 is an apocalyptic number.

30420305015 is a deficient number, since it is larger than the sum of its proper divisors (9354798985).

30420305015 is a wasteful number, since it uses less digits than its factorization.

30420305015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6839.

The product of its (nonzero) digits is 1800, while the sum is 23.

Adding to 30420305015 its reverse (51050302403), we get a palindrome (81470607418).

The spelling of 30420305015 in words is "thirty billion, four hundred twenty million, three hundred five thousand, fifteen".