19303212079 has 2 divisors, whose sum is σ = 19303212080. Its totient is φ = 19303212078.

The previous prime is 19303212067. The next prime is 19303212109. The reversal of 19303212079 is 97021230391.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (97021230391) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19303212079 - 2²¹ = 19301114927 is a prime.

It is a super-2 number, since 2×19303212079² (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 (19303212059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9651606039 + 9651606040.

It is an arithmetic number, because the mean of its divisors is an integer number (9651606040).

Almost surely, 2^19303212079 is an apocalyptic number.

19303212079 is a deficient number, since it is larger than the sum of its proper divisors (1).

19303212079 is an equidigital number, since it uses as much as digits as its factorization.

19303212079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20412, while the sum is 37.

The spelling of 19303212079 in words is "nineteen billion, three hundred three million, two hundred twelve thousand, seventy-nine".