19930111343 has 2 divisors, whose sum is σ = 19930111344. Its totient is φ = 19930111342.

The previous prime is 19930111339. The next prime is 19930111349. The reversal of 19930111343 is 34311103991.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 19930111343 - 2² = 19930111339 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19930111349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9965055671 + 9965055672.

It is an arithmetic number, because the mean of its divisors is an integer number (9965055672).

Almost surely, 2^19930111343 is an apocalyptic number.

19930111343 is a deficient number, since it is larger than the sum of its proper divisors (1).

19930111343 is an equidigital number, since it uses as much as digits as its factorization.

19930111343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8748, while the sum is 35.

The spelling of 19930111343 in words is "nineteen billion, nine hundred thirty million, one hundred eleven thousand, three hundred forty-three".