23403000013 has 2 divisors, whose sum is σ = 23403000014. Its totient is φ = 23403000012.

The previous prime is 23403000011. The next prime is 23403000059. The reversal of 23403000013 is 31000030432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18868593769 + 4534406244 = 137363^2 + 67338^2 .

It is a cyclic number.

It is not a de Polignac number, because 23403000013 - 2¹ = 23403000011 is a prime.

Together with 23403000011, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23403000011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11701500006 + 11701500007.

It is an arithmetic number, because the mean of its divisors is an integer number (11701500007).

Almost surely, 2^23403000013 is an apocalyptic number.

It is an amenable number.

23403000013 is a deficient number, since it is larger than the sum of its proper divisors (1).

23403000013 is an equidigital number, since it uses as much as digits as its factorization.

23403000013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 23403000013 its reverse (31000030432), we get a palindrome (54403030445).

The spelling of 23403000013 in words is "twenty-three billion, four hundred three million, thirteen", and thus it is an aban number.