30303031023421 has 16 divisors (see below), whose sum is σ = 33143886357120. Its totient is φ = 27536207509440.

The previous prime is 30303031023289. The next prime is 30303031023431. The reversal of 30303031023421 is 12432013030303.

It is a cyclic number.

It is not a de Polignac number, because 30303031023421 - 2¹⁷ = 30303030892349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30303031023431) 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, 24301470 + ... + 25517983.

It is an arithmetic number, because the mean of its divisors is an integer number (2071492897320).

Almost surely, 2^{30303031023421} is an apocalyptic number.

It is an amenable number.

30303031023421 is a deficient number, since it is larger than the sum of its proper divisors (2840855333699).

30303031023421 is a wasteful number, since it uses less digits than its factorization.

30303031023421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49820196.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 30303031023421 its reverse (12432013030303), we get a palindrome (42735044053724).

The spelling of 30303031023421 in words is "thirty trillion, three hundred three billion, thirty-one million, twenty-three thousand, four hundred twenty-one".