23311443193 has 2 divisors, whose sum is σ = 23311443194. Its totient is φ = 23311443192.

The previous prime is 23311443187. The next prime is 23311443257. The reversal of 23311443193 is 39134411332.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22357127529 + 954315664 = 149523^2 + 30892^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23311443193 is a prime.

It is not a weakly prime, because it can be changed into another prime (23311440193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11655721596 + 11655721597.

It is an arithmetic number, because the mean of its divisors is an integer number (11655721597).

Almost surely, 2^23311443193 is an apocalyptic number.

It is an amenable number.

23311443193 is a deficient number, since it is larger than the sum of its proper divisors (1).

23311443193 is an equidigital number, since it uses as much as digits as its factorization.

23311443193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 34.

The spelling of 23311443193 in words is "twenty-three billion, three hundred eleven million, four hundred forty-three thousand, one hundred ninety-three".