30420443023 has 4 divisors (see below), whose sum is σ = 30436396920. Its totient is φ = 30404489128.

The previous prime is 30420442979. The next prime is 30420443051. The reversal of 30420443023 is 32034402403.

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

It is a cyclic number.

It is not a de Polignac number, because 30420443023 - 2³³ = 21830508431 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 (30420443323) 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, 7974088 + ... + 7977901.

It is an arithmetic number, because the mean of its divisors is an integer number (7609099230).

Almost surely, 2^30420443023 is an apocalyptic number.

30420443023 is a deficient number, since it is larger than the sum of its proper divisors (15953897).

30420443023 is a wasteful number, since it uses less digits than its factorization.

30420443023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15953896.

The product of its (nonzero) digits is 6912, while the sum is 25.

Adding to 30420443023 its reverse (32034402403), we get a palindrome (62454845426).

The spelling of 30420443023 in words is "thirty billion, four hundred twenty million, four hundred forty-three thousand, twenty-three".