20231202021999 has 64 divisors (see below), whose sum is σ = 29557807718400. Its totient is φ = 12259847577600.

The previous prime is 20231202021983. The next prime is 20231202022007. The reversal of 20231202021999 is 99912020213202.

It is not a de Polignac number, because 20231202021999 - 2⁴ = 20231202021983 is a prime.

It is a super-3 number, since 3×20231202021999³ (a number of 41 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20231202021999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20231202025999) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 300172594 + ... + 300239984.

It is an arithmetic number, because the mean of its divisors is an integer number (461840745600).

Almost surely, 2^{20231202021999} is an apocalyptic number.

20231202021999 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

20231202021999 is a deficient number, since it is larger than the sum of its proper divisors (9326605696401).

20231202021999 is a wasteful number, since it uses less digits than its factorization.

20231202021999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68576.

The product of its (nonzero) digits is 69984, while the sum is 42.

The spelling of 20231202021999 in words is "twenty trillion, two hundred thirty-one billion, two hundred two million, twenty-one thousand, nine hundred ninety-nine".