20121320233099 has 16 divisors (see below), whose sum is σ = 20789016708096. Its totient is φ = 19454795474400.

The previous prime is 20121320233097. The next prime is 20121320233127. The reversal of 20121320233099 is 99033202312102.

It is a cyclic number.

It is not a de Polignac number, because 20121320233099 - 2¹ = 20121320233097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20121320233097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158977189 + ... + 159103705.

It is an arithmetic number, because the mean of its divisors is an integer number (1299313544256).

Almost surely, 2^{20121320233099} is an apocalyptic number.

20121320233099 is a deficient number, since it is larger than the sum of its proper divisors (667696474997).

20121320233099 is a wasteful number, since it uses less digits than its factorization.

20121320233099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131106.

The product of its (nonzero) digits is 34992, while the sum is 37.

The spelling of 20121320233099 in words is "twenty trillion, one hundred twenty-one billion, three hundred twenty million, two hundred thirty-three thousand, ninety-nine".