20010841999 has 2 divisors, whose sum is σ = 20010842000. Its totient is φ = 20010841998.

The previous prime is 20010841937. The next prime is 20010842057. The reversal of 20010841999 is 99914801002.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20010841999 - 2¹⁷ = 20010710927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20010841399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10005420999 + 10005421000.

It is an arithmetic number, because the mean of its divisors is an integer number (10005421000).

Almost surely, 2^20010841999 is an apocalyptic number.

20010841999 is a deficient number, since it is larger than the sum of its proper divisors (1).

20010841999 is an equidigital number, since it uses as much as digits as its factorization.

20010841999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 43.

The spelling of 20010841999 in words is "twenty billion, ten million, eight hundred forty-one thousand, nine hundred ninety-nine".