11312020019999 has 2 divisors, whose sum is σ = 11312020020000. Its totient is φ = 11312020019998.

The previous prime is 11312020019983. The next prime is 11312020020013. The reversal of 11312020019999 is 99991002021311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11312020019999 - 2⁴ = 11312020019983 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11312320019999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5656010009999 + 5656010010000.

It is an arithmetic number, because the mean of its divisors is an integer number (5656010010000).

Almost surely, 2^{11312020019999} is an apocalyptic number.

11312020019999 is a deficient number, since it is larger than the sum of its proper divisors (1).

11312020019999 is an equidigital number, since it uses as much as digits as its factorization.

11312020019999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 78732, while the sum is 47.

The spelling of 11312020019999 in words is "eleven trillion, three hundred twelve billion, twenty million, nineteen thousand, nine hundred ninety-nine".