20211302112321 has 16 divisors (see below), whose sum is σ = 27884750304960. Its totient is φ = 13006264071360.

The previous prime is 20211302112277. The next prime is 20211302112341. The reversal of 20211302112321 is 12321120311202.

It is not a de Polignac number, because 20211302112321 - 2⁴² = 15813255601217 is a prime.

It is a super-2 number, since 2×20211302112321² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20211302112341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29206950 + ... + 29890943.

It is an arithmetic number, because the mean of its divisors is an integer number (1742796894060).

Almost surely, 2^{20211302112321} is an apocalyptic number.

It is an amenable number.

20211302112321 is a deficient number, since it is larger than the sum of its proper divisors (7673448192639).

20211302112321 is a wasteful number, since it uses less digits than its factorization.

20211302112321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59101856.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 20211302112321 its reverse (12321120311202), we get a palindrome (32532422423523).

The spelling of 20211302112321 in words is "twenty trillion, two hundred eleven billion, three hundred two million, one hundred twelve thousand, three hundred twenty-one".