123213011112011 has 2 divisors, whose sum is σ = 123213011112012. Its totient is φ = 123213011112010.

The previous prime is 123213011112001. The next prime is 123213011112041. The reversal of 123213011112011 is 110211110312321.

It is a weak prime.

It is an emirp because it is prime and its reverse (110211110312321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123213011112011 - 2⁶ = 123213011111947 is a prime.

It is a super-2 number, since 2×123213011112011² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (123213011112001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61606505556005 + 61606505556006.

It is an arithmetic number, because the mean of its divisors is an integer number (61606505556006).

Almost surely, 2^{123213011112011} is an apocalyptic number.

123213011112011 is a deficient number, since it is larger than the sum of its proper divisors (1).

123213011112011 is an equidigital number, since it uses as much as digits as its factorization.

123213011112011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 20.

Adding to 123213011112011 its reverse (110211110312321), we get a palindrome (233424121424332).

The spelling of 123213011112011 in words is "one hundred twenty-three trillion, two hundred thirteen billion, eleven million, one hundred twelve thousand, eleven".