21103022310231 has 16 divisors (see below), whose sum is σ = 31360528512000. Its totient is φ = 12544211403648.

The previous prime is 21103022310107. The next prime is 21103022310241. The reversal of 21103022310231 is 13201322030112.

It is not a de Polignac number, because 21103022310231 - 2¹¹ = 21103022308183 is a prime.

It is a super-2 number, since 2×21103022310231² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21103022310198 and 21103022310207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21103022310241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10889071431 + ... + 10889073368.

It is an arithmetic number, because the mean of its divisors is an integer number (1960033032000).

Almost surely, 2^{21103022310231} is an apocalyptic number.

21103022310231 is a deficient number, since it is larger than the sum of its proper divisors (10257506201769).

21103022310231 is a wasteful number, since it uses less digits than its factorization.

21103022310231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21778144838.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 21103022310231 its reverse (13201322030112), we get a palindrome (34304344340343).

The spelling of 21103022310231 in words is "twenty-one trillion, one hundred three billion, twenty-two million, three hundred ten thousand, two hundred thirty-one".