21030112012311 has 16 divisors (see below), whose sum is σ = 31166649611520. Its totient is φ = 14015157024600.

The previous prime is 21030112012303. The next prime is 21030112012319. The reversal of 21030112012311 is 11321021103012.

21030112012311 is a `hidden beast` number, since 2 + 10 + 301 + 120 + 1 + 231 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (21030112012303) and next prime (21030112012319).

It is not a de Polignac number, because 21030112012311 - 2³ = 21030112012303 is a prime.

It is a super-2 number, since 2×21030112012311² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21030112012319) 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 in 15 ways as a sum of consecutive naturals, for example, 136522995 + ... + 136676948.

It is an arithmetic number, because the mean of its divisors is an integer number (1947915600720).

Almost surely, 2^{21030112012311} is an apocalyptic number.

21030112012311 is a deficient number, since it is larger than the sum of its proper divisors (10136537599209).

21030112012311 is a wasteful number, since it uses less digits than its factorization.

21030112012311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273202803 (or 273202797 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 21030112012311 its reverse (11321021103012), we get a palindrome (32351133115323).

The spelling of 21030112012311 in words is "twenty-one trillion, thirty billion, one hundred twelve million, twelve thousand, three hundred eleven".