21103022332231 has 8 divisors (see below), whose sum is σ = 25166337191424. Its totient is φ = 17301856818840.

The previous prime is 21103022332141. The next prime is 21103022332237. The reversal of 21103022332231 is 13223322030112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21103022332231 - 2⁷ = 21103022332103 is a prime.

It is a super-2 number, since 2×21103022332231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21103022332196 and 21103022332205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21103022332237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65537336275 + ... + 65537336596.

It is an arithmetic number, because the mean of its divisors is an integer number (3145792148928).

Almost surely, 2^{21103022332231} is an apocalyptic number.

21103022332231 is a deficient number, since it is larger than the sum of its proper divisors (4063314859193).

21103022332231 is a wasteful number, since it uses less digits than its factorization.

21103022332231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131074672901.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 21103022332231 its reverse (13223322030112), we get a palindrome (34326344362343).

The spelling of 21103022332231 in words is "twenty-one trillion, one hundred three billion, twenty-two million, three hundred thirty-two thousand, two hundred thirty-one".