23123403203399 has 2 divisors, whose sum is σ = 23123403203400. Its totient is φ = 23123403203398.

The previous prime is 23123403203359. The next prime is 23123403203401. The reversal of 23123403203399 is 99330230432132.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23123403203399 - 2²⁰ = 23123402154823 is a prime.

Together with 23123403203401, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23123403203339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11561701601699 + 11561701601700.

It is an arithmetic number, because the mean of its divisors is an integer number (11561701601700).

Almost surely, 2^{23123403203399} is an apocalyptic number.

23123403203399 is a deficient number, since it is larger than the sum of its proper divisors (1).

23123403203399 is an equidigital number, since it uses as much as digits as its factorization.

23123403203399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 629856, while the sum is 44.

The spelling of 23123403203399 in words is "twenty-three trillion, one hundred twenty-three billion, four hundred three million, two hundred three thousand, three hundred ninety-nine".