19629430111 has 2 divisors, whose sum is σ = 19629430112. Its totient is φ = 19629430110.

The previous prime is 19629430091. The next prime is 19629430127. The reversal of 19629430111 is 11103492691.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19629430111 - 2⁷ = 19629429983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19629430141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9814715055 + 9814715056.

It is an arithmetic number, because the mean of its divisors is an integer number (9814715056).

Almost surely, 2^19629430111 is an apocalyptic number.

19629430111 is a deficient number, since it is larger than the sum of its proper divisors (1).

19629430111 is an equidigital number, since it uses as much as digits as its factorization.

19629430111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 37.

The spelling of 19629430111 in words is "nineteen billion, six hundred twenty-nine million, four hundred thirty thousand, one hundred eleven".