23119970857 has 2 divisors, whose sum is σ = 23119970858. Its totient is φ = 23119970856.

The previous prime is 23119970851. The next prime is 23119970869. The reversal of 23119970857 is 75807991132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22778053776 + 341917081 = 150924^2 + 18491^2 .

It is a cyclic number.

It is not a de Polignac number, because 23119970857 - 2⁷ = 23119970729 is a prime.

It is not a weakly prime, because it can be changed into another prime (23119970851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11559985428 + 11559985429.

It is an arithmetic number, because the mean of its divisors is an integer number (11559985429).

Almost surely, 2^23119970857 is an apocalyptic number.

It is an amenable number.

23119970857 is a deficient number, since it is larger than the sum of its proper divisors (1).

23119970857 is an equidigital number, since it uses as much as digits as its factorization.

23119970857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 952560, while the sum is 52.

The spelling of 23119970857 in words is "twenty-three billion, one hundred nineteen million, nine hundred seventy thousand, eight hundred fifty-seven".