30663520423 has 2 divisors, whose sum is σ = 30663520424. Its totient is φ = 30663520422.

The previous prime is 30663520387. The next prime is 30663520453. The reversal of 30663520423 is 32402536603.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30663520423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30663520453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15331760211 + 15331760212.

It is an arithmetic number, because the mean of its divisors is an integer number (15331760212).

Almost surely, 2^30663520423 is an apocalyptic number.

30663520423 is a deficient number, since it is larger than the sum of its proper divisors (1).

30663520423 is an equidigital number, since it uses as much as digits as its factorization.

30663520423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 34.

The spelling of 30663520423 in words is "thirty billion, six hundred sixty-three million, five hundred twenty thousand, four hundred twenty-three".