21323133311203 has 32 divisors (see below), whose sum is σ = 23047786967040. Its totient is φ = 19666812211200.

The previous prime is 21323133311159. The next prime is 21323133311237. The reversal of 21323133311203 is 30211333132312.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 21323133311203 - 2⁹ = 21323133310691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21323133311273) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 2232550278 + ... + 2232559828.

It is an arithmetic number, because the mean of its divisors is an integer number (720243342720).

Almost surely, 2^{21323133311203} is an apocalyptic number.

21323133311203 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

21323133311203 is a deficient number, since it is larger than the sum of its proper divisors (1724653655837).

21323133311203 is a wasteful number, since it uses less digits than its factorization.

21323133311203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13659.

The product of its (nonzero) digits is 5832, while the sum is 28.

Adding to 21323133311203 its reverse (30211333132312), we get a palindrome (51534466443515).

The spelling of 21323133311203 in words is "twenty-one trillion, three hundred twenty-three billion, one hundred thirty-three million, three hundred eleven thousand, two hundred three".