21013032113303 has 2 divisors, whose sum is σ = 21013032113304. Its totient is φ = 21013032113302.

The previous prime is 21013032113273. The next prime is 21013032113323. The reversal of 21013032113303 is 30331123031012.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21013032113303 is a prime.

It is a super-3 number, since 3×21013032113303³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21013032113323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10506516056651 + 10506516056652.

It is an arithmetic number, because the mean of its divisors is an integer number (10506516056652).

Almost surely, 2^{21013032113303} is an apocalyptic number.

21013032113303 is a deficient number, since it is larger than the sum of its proper divisors (1).

21013032113303 is an equidigital number, since it uses as much as digits as its factorization.

21013032113303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 21013032113303 its reverse (30331123031012), we get a palindrome (51344155144315).

The spelling of 21013032113303 in words is "twenty-one trillion, thirteen billion, thirty-two million, one hundred thirteen thousand, three hundred three".