12210123231011 has 2 divisors, whose sum is σ = 12210123231012. Its totient is φ = 12210123231010.

The previous prime is 12210123230999. The next prime is 12210123231091. The reversal of 12210123231011 is 11013232101221.

12210123231011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12210123231011 is a prime.

It is not a weakly prime, because it can be changed into another prime (12210123231091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6105061615505 + 6105061615506.

It is an arithmetic number, because the mean of its divisors is an integer number (6105061615506).

Almost surely, 2^{12210123231011} is an apocalyptic number.

12210123231011 is a deficient number, since it is larger than the sum of its proper divisors (1).

12210123231011 is an equidigital number, since it uses as much as digits as its factorization.

12210123231011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 12210123231011 its reverse (11013232101221), we get a palindrome (23223355332232).

The spelling of 12210123231011 in words is "twelve trillion, two hundred ten billion, one hundred twenty-three million, two hundred thirty-one thousand, eleven".