23101213 has 2 divisors, whose sum is σ = 23101214.
Its totient is φ = 23101212.
The previous prime is 23101159. The next prime is 23101217. The reversal of 23101213 is 31210132.
Adding to 23101213 its reverse (31210132), we get a palindrome (54311345).
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 21930489 + 1170724 = 4683^2 + 1082^2
It is a cyclic number.
It is not a de Polignac number, because 23101213 - 217 = 22970141 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 23101193 and 23101202.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (23101217) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11550606 + 11550607.
It is an arithmetic number, because the mean of its divisors is an integer number (11550607).
Almost surely, 223101213 is an apocalyptic number.
It is an amenable number.
23101213 is a deficient number, since it is larger than the sum of its proper divisors (1).
23101213 is an equidigital number, since it uses as much as digits as its factorization.
23101213 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 36, while the sum is 13.
The square root of 23101213 is about 4806.3721245863.
The cubic root of 23101213 is about 284.8032416427.
The spelling of 23101213 in words is "twenty-three million, one hundred one thousand, two hundred thirteen".