21303101113231 has 16 divisors (see below), whose sum is σ = 24384297417984. Its totient is φ = 18231382681344.

The previous prime is 21303101113223. The next prime is 21303101113247. The reversal of 21303101113231 is 13231110130312.

It is not a de Polignac number, because 21303101113231 - 2³ = 21303101113223 is a prime.

It is a super-2 number, since 2×21303101113231² (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 (21303101113331) 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, 69886356 + ... + 70190518.

It is an arithmetic number, because the mean of its divisors is an integer number (1524018588624).

Almost surely, 2^{21303101113231} is an apocalyptic number.

21303101113231 is a deficient number, since it is larger than the sum of its proper divisors (3081196304753).

21303101113231 is a wasteful number, since it uses less digits than its factorization.

21303101113231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319710.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 21303101113231 its reverse (13231110130312), we get a palindrome (34534211243543).

The spelling of 21303101113231 in words is "twenty-one trillion, three hundred three billion, one hundred one million, one hundred thirteen thousand, two hundred thirty-one".