21010303031299 has 4 divisors (see below), whose sum is σ = 21013402359960. Its totient is φ = 21007203702640.

The previous prime is 21010303031231. The next prime is 21010303031387. The reversal of 21010303031299 is 99213030301012.

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

It is a cyclic number.

It is not a de Polignac number, because 21010303031299 - 2¹³ = 21010303023107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21010303031209) 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, 1549654162 + ... + 1549667719.

It is an arithmetic number, because the mean of its divisors is an integer number (5253350589990).

Almost surely, 2^{21010303031299} is an apocalyptic number.

21010303031299 is a deficient number, since it is larger than the sum of its proper divisors (3099328661).

21010303031299 is an equidigital number, since it uses as much as digits as its factorization.

21010303031299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3099328660.

The product of its (nonzero) digits is 8748, while the sum is 34.

The spelling of 21010303031299 in words is "twenty-one trillion, ten billion, three hundred three million, thirty-one thousand, two hundred ninety-nine".