20112000099973 has 2 divisors, whose sum is σ = 20112000099974. Its totient is φ = 20112000099972.

The previous prime is 20112000099943. The next prime is 20112000100019. The reversal of 20112000099973 is 37999000021102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12689824549284 + 7422175550689 = 3562278^2 + 2724367^2 .

It is a cyclic number.

It is not a de Polignac number, because 20112000099973 - 2¹⁷ = 20111999968901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20112000099913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10056000049986 + 10056000049987.

It is an arithmetic number, because the mean of its divisors is an integer number (10056000049987).

Almost surely, 2^{20112000099973} is an apocalyptic number.

It is an amenable number.

20112000099973 is a deficient number, since it is larger than the sum of its proper divisors (1).

20112000099973 is an equidigital number, since it uses as much as digits as its factorization.

20112000099973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 61236, while the sum is 43.

The spelling of 20112000099973 in words is "twenty trillion, one hundred twelve billion, ninety-nine thousand, nine hundred seventy-three".