19942903343 has 12 divisors (see below), whose sum is σ = 21946404480. Its totient is φ = 18108662880.

The previous prime is 19942903313. The next prime is 19942903369. The reversal of 19942903343 is 34330924991.

It is not a de Polignac number, because 19942903343 - 2²⁰ = 19941854767 is a prime.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19942903313) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7538 + ... + 199856.

It is an arithmetic number, because the mean of its divisors is an integer number (1828867040).

Almost surely, 2^19942903343 is an apocalyptic number.

19942903343 is a deficient number, since it is larger than the sum of its proper divisors (2003501137).

19942903343 is a wasteful number, since it uses less digits than its factorization.

19942903343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193198 (or 193187 counting only the distinct ones).

The product of its (nonzero) digits is 629856, while the sum is 47.

The spelling of 19942903343 in words is "nineteen billion, nine hundred forty-two million, nine hundred three thousand, three hundred forty-three".