23210212117 has 2 divisors, whose sum is σ = 23210212118. Its totient is φ = 23210212116.

The previous prime is 23210212099. The next prime is 23210212127. The reversal of 23210212117 is 71121201232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11675666916 + 11534545201 = 108054^2 + 107399^2 .

It is a cyclic number.

It is not a de Polignac number, because 23210212117 - 2⁷ = 23210211989 is a prime.

It is a super-2 number, since 2×23210212117² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23210212127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11605106058 + 11605106059.

It is an arithmetic number, because the mean of its divisors is an integer number (11605106059).

Almost surely, 2^23210212117 is an apocalyptic number.

It is an amenable number.

23210212117 is a deficient number, since it is larger than the sum of its proper divisors (1).

23210212117 is an equidigital number, since it uses as much as digits as its factorization.

23210212117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 22.

Adding to 23210212117 its reverse (71121201232), we get a palindrome (94331413349).

The spelling of 23210212117 in words is "twenty-three billion, two hundred ten million, two hundred twelve thousand, one hundred seventeen".