1232111022011 has 2 divisors, whose sum is σ = 1232111022012. Its totient is φ = 1232111022010.

The previous prime is 1232111022001. The next prime is 1232111022059. The reversal of 1232111022011 is 1102201112321.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1232111022011 is a prime.

It is not a weakly prime, because it can be changed into another prime (1232111022001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616055511005 + 616055511006.

It is an arithmetic number, because the mean of its divisors is an integer number (616055511006).

Almost surely, 2^{1232111022011} is an apocalyptic number.

1232111022011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1232111022011 is an equidigital number, since it uses as much as digits as its factorization.

1232111022011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1232111022011 its reverse (1102201112321), we get a palindrome (2334312134332).

The spelling of 1232111022011 in words is "one trillion, two hundred thirty-two billion, one hundred eleven million, twenty-two thousand, eleven".