23212033111 has 2 divisors, whose sum is σ = 23212033112. Its totient is φ = 23212033110.

The previous prime is 23212033001. The next prime is 23212033151. The reversal of 23212033111 is 11133021232.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23212033111 is a prime.

It is a super-2 number, since 2×23212033111² (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 (23212033151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11606016555 + 11606016556.

It is an arithmetic number, because the mean of its divisors is an integer number (11606016556).

Almost surely, 2^23212033111 is an apocalyptic number.

23212033111 is a deficient number, since it is larger than the sum of its proper divisors (1).

23212033111 is an equidigital number, since it uses as much as digits as its factorization.

23212033111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 23212033111 its reverse (11133021232), we get a palindrome (34345054343).

The spelling of 23212033111 in words is "twenty-three billion, two hundred twelve million, thirty-three thousand, one hundred eleven".