123233021099 has 2 divisors, whose sum is σ = 123233021100. Its totient is φ = 123233021098.

The previous prime is 123233021089. The next prime is 123233021113. The reversal of 123233021099 is 990120332321.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123233021099 - 2⁸ = 123233020843 is a prime.

It is not a weakly prime, because it can be changed into another prime (123233021069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61616510549 + 61616510550.

It is an arithmetic number, because the mean of its divisors is an integer number (61616510550).

Almost surely, 2^123233021099 is an apocalyptic number.

123233021099 is a deficient number, since it is larger than the sum of its proper divisors (1).

123233021099 is an equidigital number, since it uses as much as digits as its factorization.

123233021099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17496, while the sum is 35.

The spelling of 123233021099 in words is "one hundred twenty-three billion, two hundred thirty-three million, twenty-one thousand, ninety-nine".