21030112012303 has 2 divisors, whose sum is σ = 21030112012304. Its totient is φ = 21030112012302.

The previous prime is 21030112012271. The next prime is 21030112012319. The reversal of 21030112012303 is 30321021103012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21030112012303 - 2⁵ = 21030112012271 is a prime.

It is a super-2 number, since 2×21030112012303² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21030112013303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10515056006151 + 10515056006152.

It is an arithmetic number, because the mean of its divisors is an integer number (10515056006152).

Almost surely, 2^{21030112012303} is an apocalyptic number.

21030112012303 is a deficient number, since it is larger than the sum of its proper divisors (1).

21030112012303 is an equidigital number, since it uses as much as digits as its factorization.

21030112012303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 21030112012303 its reverse (30321021103012), we get a palindrome (51351133115315).

The spelling of 21030112012303 in words is "twenty-one trillion, thirty billion, one hundred twelve million, twelve thousand, three hundred three".