21010031130199 has 2 divisors, whose sum is σ = 21010031130200. Its totient is φ = 21010031130198.

The previous prime is 21010031130131. The next prime is 21010031130229. The reversal of 21010031130199 is 99103113001012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21010031130199 - 2³¹ = 21007883646551 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21010031130199.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21010031134199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10505015565099 + 10505015565100.

It is an arithmetic number, because the mean of its divisors is an integer number (10505015565100).

Almost surely, 2^{21010031130199} is an apocalyptic number.

21010031130199 is a deficient number, since it is larger than the sum of its proper divisors (1).

21010031130199 is an equidigital number, since it uses as much as digits as its factorization.

21010031130199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1458, while the sum is 31.

The spelling of 21010031130199 in words is "twenty-one trillion, ten billion, thirty-one million, one hundred thirty thousand, one hundred ninety-nine".