21233131133223 has 16 divisors (see below), whose sum is σ = 30049476564960. Its totient is φ = 13290174974976.

The previous prime is 21233131133209. The next prime is 21233131133281. The reversal of 21233131133223 is 32233113133212.

It is not a de Polignac number, because 21233131133223 - 2¹⁴ = 21233131116839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21233131133623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 508947240 + ... + 508988957.

It is an arithmetic number, because the mean of its divisors is an integer number (1878092285310).

Almost surely, 2^{21233131133223} is an apocalyptic number.

21233131133223 is a deficient number, since it is larger than the sum of its proper divisors (8816345431737).

21233131133223 is a wasteful number, since it uses less digits than its factorization.

21233131133223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017936626.

The product of its digits is 11664, while the sum is 30.

Adding to 21233131133223 its reverse (32233113133212), we get a palindrome (53466244266435).

The spelling of 21233131133223 in words is "twenty-one trillion, two hundred thirty-three billion, one hundred thirty-one million, one hundred thirty-three thousand, two hundred twenty-three".