12020031209999 has 4 divisors (see below), whose sum is σ = 12058433865936. Its totient is φ = 11981628554064.

The previous prime is 12020031209957. The next prime is 12020031210017. The reversal of 12020031209999 is 99990213002021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12020031209999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020031209909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19201327499 + ... + 19201328124.

It is an arithmetic number, because the mean of its divisors is an integer number (3014608466484).

Almost surely, 2^{12020031209999} is an apocalyptic number.

12020031209999 is a deficient number, since it is larger than the sum of its proper divisors (38402655937).

12020031209999 is an equidigital number, since it uses as much as digits as its factorization.

12020031209999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38402655936.

The product of its (nonzero) digits is 157464, while the sum is 47.

The spelling of 12020031209999 in words is "twelve trillion, twenty billion, thirty-one million, two hundred nine thousand, nine hundred ninety-nine".