20943033199 has 12 divisors (see below), whose sum is σ = 23044931280. Its totient is φ = 19018524800.

The previous prime is 20943033173. The next prime is 20943033257. The reversal of 20943033199 is 99133034902.

It is a happy number.

It is not a de Polignac number, because 20943033199 - 2¹³ = 20943025007 is a prime.

It is a super-2 number, since 2×20943033199² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20943033149) 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, 19254 + ... + 205564.

It is an arithmetic number, because the mean of its divisors is an integer number (1920410940).

Almost surely, 2^20943033199 is an apocalyptic number.

20943033199 is a deficient number, since it is larger than the sum of its proper divisors (2101898081).

20943033199 is a wasteful number, since it uses less digits than its factorization.

20943033199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187262 (or 187251 counting only the distinct ones).

The product of its (nonzero) digits is 157464, while the sum is 43.

The spelling of 20943033199 in words is "twenty billion, nine hundred forty-three million, thirty-three thousand, one hundred ninety-nine".