23243205091 has 2 divisors, whose sum is σ = 23243205092. Its totient is φ = 23243205090.

The previous prime is 23243205049. The next prime is 23243205107. The reversal of 23243205091 is 19050234232.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23243205091 - 2¹¹ = 23243203043 is a prime.

It is not a weakly prime, because it can be changed into another prime (23243205691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11621602545 + 11621602546.

It is an arithmetic number, because the mean of its divisors is an integer number (11621602546).

Almost surely, 2^23243205091 is an apocalyptic number.

23243205091 is a deficient number, since it is larger than the sum of its proper divisors (1).

23243205091 is an equidigital number, since it uses as much as digits as its factorization.

23243205091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 31.

The spelling of 23243205091 in words is "twenty-three billion, two hundred forty-three million, two hundred five thousand, ninety-one".