21103011322 has 16 divisors (see below), whose sum is σ = 32370904800. Its totient is φ = 10314708400.

The previous prime is 21103011311. The next prime is 21103011337. The reversal of 21103011322 is 22311030112.

It is a junction number, because it is equal to n+sod(n) for n = 21103011296 and 21103011305.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 478429 + ... + 520672.

It is an arithmetic number, because the mean of its divisors is an integer number (2023181550).

Almost surely, 2^21103011322 is an apocalyptic number.

21103011322 is a deficient number, since it is larger than the sum of its proper divisors (11267893478).

21103011322 is a wasteful number, since it uses less digits than its factorization.

21103011322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 999341.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 21103011322 its reverse (22311030112), we get a palindrome (43414041434).

The spelling of 21103011322 in words is "twenty-one billion, one hundred three million, eleven thousand, three hundred twenty-two".