123233012011 has 2 divisors, whose sum is σ = 123233012012. Its totient is φ = 123233012010.

The previous prime is 123233011991. The next prime is 123233012027. The reversal of 123233012011 is 110210332321.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123233012011 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123233012011.

It is not a weakly prime, because it can be changed into another prime (123233012711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61616506005 + 61616506006.

It is an arithmetic number, because the mean of its divisors is an integer number (61616506006).

Almost surely, 2^123233012011 is an apocalyptic number.

123233012011 is a deficient number, since it is larger than the sum of its proper divisors (1).

123233012011 is an equidigital number, since it uses as much as digits as its factorization.

123233012011 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 123233012011 its reverse (110210332321), we get a palindrome (233443344332).

The spelling of 123233012011 in words is "one hundred twenty-three billion, two hundred thirty-three million, twelve thousand, eleven".