23112211213151 has 2 divisors, whose sum is σ = 23112211213152. Its totient is φ = 23112211213150.

The previous prime is 23112211213093. The next prime is 23112211213153. The reversal of 23112211213151 is 15131211221132.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23112211213151 is a prime.

It is a super-2 number, since 2×23112211213151² (a number of 28 digits) contains 22 as substring.

Together with 23112211213153, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23112211213151.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23112211213153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11556105606575 + 11556105606576.

It is an arithmetic number, because the mean of its divisors is an integer number (11556105606576).

Almost surely, 2^{23112211213151} is an apocalyptic number.

23112211213151 is a deficient number, since it is larger than the sum of its proper divisors (1).

23112211213151 is an equidigital number, since it uses as much as digits as its factorization.

23112211213151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 720, while the sum is 26.

Adding to 23112211213151 its reverse (15131211221132), we get a palindrome (38243422434283).

The spelling of 23112211213151 in words is "twenty-three trillion, one hundred twelve billion, two hundred eleven million, two hundred thirteen thousand, one hundred fifty-one".