21133123232099 has 2 divisors, whose sum is σ = 21133123232100. Its totient is φ = 21133123232098.

The previous prime is 21133123232059. The next prime is 21133123232161. The reversal of 21133123232099 is 99023232133112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21133123232099 - 2¹⁶ = 21133123166563 is a prime.

It is not a weakly prime, because it can be changed into another prime (21133123232059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10566561616049 + 10566561616050.

It is an arithmetic number, because the mean of its divisors is an integer number (10566561616050).

Almost surely, 2^{21133123232099} is an apocalyptic number.

21133123232099 is a deficient number, since it is larger than the sum of its proper divisors (1).

21133123232099 is an equidigital number, since it uses as much as digits as its factorization.

21133123232099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 104976, while the sum is 41.

The spelling of 21133123232099 in words is "twenty-one trillion, one hundred thirty-three billion, one hundred twenty-three million, two hundred thirty-two thousand, ninety-nine".