23420499073 has 2 divisors, whose sum is σ = 23420499074. Its totient is φ = 23420499072.

The previous prime is 23420499059. The next prime is 23420499079. The reversal of 23420499073 is 37099402432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23416038529 + 4460544 = 153023^2 + 2112^2 .

It is a cyclic number.

It is not a de Polignac number, because 23420499073 - 2²¹ = 23418401921 is a prime.

It is not a weakly prime, because it can be changed into another prime (23420499079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11710249536 + 11710249537.

It is an arithmetic number, because the mean of its divisors is an integer number (11710249537).

Almost surely, 2^23420499073 is an apocalyptic number.

It is an amenable number.

23420499073 is a deficient number, since it is larger than the sum of its proper divisors (1).

23420499073 is an equidigital number, since it uses as much as digits as its factorization.

23420499073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 43.

The spelling of 23420499073 in words is "twenty-three billion, four hundred twenty million, four hundred ninety-nine thousand, seventy-three".