21233122319 has 2 divisors, whose sum is σ = 21233122320. Its totient is φ = 21233122318.

The previous prime is 21233122301. The next prime is 21233122343. The reversal of 21233122319 is 91322133212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21233122319 - 2¹⁶ = 21233056783 is a prime.

It is a super-2 number, since 2×21233122319² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21233122291 and 21233122300.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21233122369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10616561159 + 10616561160.

It is an arithmetic number, because the mean of its divisors is an integer number (10616561160).

Almost surely, 2^21233122319 is an apocalyptic number.

21233122319 is a deficient number, since it is larger than the sum of its proper divisors (1).

21233122319 is an equidigital number, since it uses as much as digits as its factorization.

21233122319 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 29.

The spelling of 21233122319 in words is "twenty-one billion, two hundred thirty-three million, one hundred twenty-two thousand, three hundred nineteen".