23420539603 has 2 divisors, whose sum is σ = 23420539604. Its totient is φ = 23420539602.

The previous prime is 23420539589. The next prime is 23420539657. The reversal of 23420539603 is 30693502432.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23420539603 - 2³³ = 14830605011 is a prime.

It is not a weakly prime, because it can be changed into another prime (23420539663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11710269801 + 11710269802.

It is an arithmetic number, because the mean of its divisors is an integer number (11710269802).

Almost surely, 2^23420539603 is an apocalyptic number.

23420539603 is a deficient number, since it is larger than the sum of its proper divisors (1).

23420539603 is an equidigital number, since it uses as much as digits as its factorization.

23420539603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116640, while the sum is 37.

The spelling of 23420539603 in words is "twenty-three billion, four hundred twenty million, five hundred thirty-nine thousand, six hundred three".