21123301311322 has 32 divisors (see below), whose sum is σ = 36423705112704. Its totient is φ = 8999794267200.

The previous prime is 21123301311199. The next prime is 21123301311349. The reversal of 21123301311322 is 22311310332112.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6125628 + ... + 8931400.

It is an arithmetic number, because the mean of its divisors is an integer number (1138240784772).

Almost surely, 2^{21123301311322} is an apocalyptic number.

21123301311322 is a deficient number, since it is larger than the sum of its proper divisors (15300403801382).

21123301311322 is a wasteful number, since it uses less digits than its factorization.

21123301311322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2808934.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 21123301311322 its reverse (22311310332112), we get a palindrome (43434611643434).

The spelling of 21123301311322 in words is "twenty-one trillion, one hundred twenty-three billion, three hundred one million, three hundred eleven thousand, three hundred twenty-two".