19530372311 has 2 divisors, whose sum is σ = 19530372312. Its totient is φ = 19530372310.

The previous prime is 19530372307. The next prime is 19530372313. The reversal of 19530372311 is 11327303591.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19530372311 - 2² = 19530372307 is a prime.

Together with 19530372313, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19530372313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9765186155 + 9765186156.

It is an arithmetic number, because the mean of its divisors is an integer number (9765186156).

Almost surely, 2^19530372311 is an apocalyptic number.

19530372311 is a deficient number, since it is larger than the sum of its proper divisors (1).

19530372311 is an equidigital number, since it uses as much as digits as its factorization.

19530372311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17010, while the sum is 35.

The spelling of 19530372311 in words is "nineteen billion, five hundred thirty million, three hundred seventy-two thousand, three hundred eleven".