21303203023122 has 8 divisors (see below), whose sum is σ = 42606406046256. Its totient is φ = 7101067674372.

The previous prime is 21303203023099. The next prime is 21303203023171. The reversal of 21303203023122 is 22132030230312.

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

21303203023122 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 21303203023092 and 21303203023101.

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, 1775266918588 + ... + 1775266918599.

It is an arithmetic number, because the mean of its divisors is an integer number (5325800755782).

Almost surely, 2^{21303203023122} is an apocalyptic number.

21303203023122 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.

21303203023122 is a wasteful number, since it uses less digits than its factorization.

21303203023122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3550533837192.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 21303203023122 its reverse (22132030230312), we get a palindrome (43435233253434).

The spelling of 21303203023122 in words is "twenty-one trillion, three hundred three billion, two hundred three million, twenty-three thousand, one hundred twenty-two".