20133223993 has 16 divisors (see below), whose sum is σ = 20906487360. Its totient is φ = 19372706496.

The previous prime is 20133223991. The next prime is 20133224017. The reversal of 20133223993 is 39932233102.

It is a cyclic number.

It is not a de Polignac number, because 20133223993 - 2¹ = 20133223991 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20133223991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2266146 + ... + 2275012.

It is an arithmetic number, because the mean of its divisors is an integer number (1306655460).

Almost surely, 2^20133223993 is an apocalyptic number.

It is an amenable number.

20133223993 is a deficient number, since it is larger than the sum of its proper divisors (773263367).

20133223993 is a wasteful number, since it uses less digits than its factorization.

20133223993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9576.

The product of its (nonzero) digits is 52488, while the sum is 37.

The spelling of 20133223993 in words is "twenty billion, one hundred thirty-three million, two hundred twenty-three thousand, nine hundred ninety-three".