30420304304231 has 4 divisors (see below), whose sum is σ = 30422059372872. Its totient is φ = 30418549235592.

The previous prime is 30420304304219. The next prime is 30420304304309. The reversal of 30420304304231 is 13240340302403.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30420304304231 is a prime.

It is a super-2 number, since 2×30420304304231² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30420304304194 and 30420304304203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30420304204231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 877508321 + ... + 877542986.

It is an arithmetic number, because the mean of its divisors is an integer number (7605514843218).

Almost surely, 2^{30420304304231} is an apocalyptic number.

30420304304231 is a deficient number, since it is larger than the sum of its proper divisors (1755068641).

30420304304231 is a wasteful number, since it uses less digits than its factorization.

30420304304231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1755068640.

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 30420304304231 its reverse (13240340302403), we get a palindrome (43660644606634).

The spelling of 30420304304231 in words is "thirty trillion, four hundred twenty billion, three hundred four million, three hundred four thousand, two hundred thirty-one".