19933340101 has 4 divisors (see below), whose sum is σ = 20576351104. Its totient is φ = 19290329100.

The previous prime is 19933340033. The next prime is 19933340111. The reversal of 19933340101 is 10104333991.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 19933340101 - 2⁷ = 19933339973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19933340111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 321505455 + ... + 321505516.

It is an arithmetic number, because the mean of its divisors is an integer number (5144087776).

Almost surely, 2^19933340101 is an apocalyptic number.

It is an amenable number.

19933340101 is a deficient number, since it is larger than the sum of its proper divisors (643011003).

19933340101 is an equidigital number, since it uses as much as digits as its factorization.

19933340101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643011002.

The product of its (nonzero) digits is 8748, while the sum is 34.

The spelling of 19933340101 in words is "nineteen billion, nine hundred thirty-three million, three hundred forty thousand, one hundred one".