21160777303 has 2 divisors, whose sum is σ = 21160777304. Its totient is φ = 21160777302.

The previous prime is 21160777259. The next prime is 21160777349. The reversal of 21160777303 is 30377706112.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21160777303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21160777003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10580388651 + 10580388652.

It is an arithmetic number, because the mean of its divisors is an integer number (10580388652).

Almost surely, 2^21160777303 is an apocalyptic number.

21160777303 is a deficient number, since it is larger than the sum of its proper divisors (1).

21160777303 is an equidigital number, since it uses as much as digits as its factorization.

21160777303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37044, while the sum is 37.

The spelling of 21160777303 in words is "twenty-one billion, one hundred sixty million, seven hundred seventy-seven thousand, three hundred three".