19942430303 has 2 divisors, whose sum is σ = 19942430304. Its totient is φ = 19942430302.

The previous prime is 19942430243. The next prime is 19942430351. The reversal of 19942430303 is 30303424991.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19942430303 - 2⁶ = 19942430239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19942430503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9971215151 + 9971215152.

It is an arithmetic number, because the mean of its divisors is an integer number (9971215152).

Almost surely, 2^19942430303 is an apocalyptic number.

19942430303 is a deficient number, since it is larger than the sum of its proper divisors (1).

19942430303 is an equidigital number, since it uses as much as digits as its factorization.

19942430303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984, while the sum is 38.

The spelling of 19942430303 in words is "nineteen billion, nine hundred forty-two million, four hundred thirty thousand, three hundred three".