21302121311230 has 16 divisors (see below), whose sum is σ = 38344489046640. Its totient is φ = 8520699483072.

The previous prime is 21302121311213. The next prime is 21302121311239. The reversal of 21302121311230 is 3211312120312.

It is a super-2 number, since 2×21302121311230² (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 (21302121311239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18028959 + ... + 19174138.

It is an arithmetic number, because the mean of its divisors is an integer number (2396530565415).

Almost surely, 2^{21302121311230} is an apocalyptic number.

21302121311230 is a deficient number, since it is larger than the sum of its proper divisors (17042367735410).

21302121311230 is a wasteful number, since it uses less digits than its factorization.

21302121311230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37260363.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 21302121311230 its reverse (3211312120312), we get a palindrome (24513433431542).

The spelling of 21302121311230 in words is "twenty-one trillion, three hundred two billion, one hundred twenty-one million, three hundred eleven thousand, two hundred thirty".