21031103022 has 8 divisors (see below), whose sum is σ = 42062206056. Its totient is φ = 7010367672.

The previous prime is 21031103011. The next prime is 21031103047. The reversal of 21031103022 is 22030113012.

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

21031103022 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 21031102992 and 21031103010.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1752591913 + ... + 1752591924.

It is an arithmetic number, because the mean of its divisors is an integer number (5257775757).

Almost surely, 2^21031103022 is an apocalyptic number.

21031103022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21031103022 is a wasteful number, since it uses less digits than its factorization.

21031103022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3505183842.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 21031103022 its reverse (22030113012), we get a palindrome (43061216034).

The spelling of 21031103022 in words is "twenty-one billion, thirty-one million, one hundred three thousand, twenty-two".