23210099947 has 2 divisors, whose sum is σ = 23210099948. Its totient is φ = 23210099946.

The previous prime is 23210099909. The next prime is 23210100013. The reversal of 23210099947 is 74999001232.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23210099947 - 2³¹ = 21062616299 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23210099897 and 23210099906.

It is not a weakly prime, because it can be changed into another prime (23210099747) 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, 11605049973 + 11605049974.

It is an arithmetic number, because the mean of its divisors is an integer number (11605049974).

Almost surely, 2^23210099947 is an apocalyptic number.

23210099947 is a deficient number, since it is larger than the sum of its proper divisors (1).

23210099947 is an equidigital number, since it uses as much as digits as its factorization.

23210099947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 244944, while the sum is 46.

The spelling of 23210099947 in words is "twenty-three billion, two hundred ten million, ninety-nine thousand, nine hundred forty-seven".