21112192319 has 2 divisors, whose sum is σ = 21112192320. Its totient is φ = 21112192318.

The previous prime is 21112192313. The next prime is 21112192351. The reversal of 21112192319 is 91329121112.

It is a happy number.

It is an a-pointer prime, because the next prime (21112192351) can be obtained adding 21112192319 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21112192319 - 2²⁰ = 21111143743 is a prime.

It is a super-2 number, since 2×21112192319² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21112192313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10556096159 + 10556096160.

It is an arithmetic number, because the mean of its divisors is an integer number (10556096160).

Almost surely, 2^21112192319 is an apocalyptic number.

21112192319 is a deficient number, since it is larger than the sum of its proper divisors (1).

21112192319 is an equidigital number, since it uses as much as digits as its factorization.

21112192319 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944, while the sum is 32.

The spelling of 21112192319 in words is "twenty-one billion, one hundred twelve million, one hundred ninety-two thousand, three hundred nineteen".