31233122310223 has 16 divisors (see below), whose sum is σ = 31778295494400. Its totient is φ = 30691277507520.

The previous prime is 31233122310209. The next prime is 31233122310227. The reversal of 31233122310223 is 32201322133213.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31233122310223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31233122310191 and 31233122310200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31233122310227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28045648 + ... + 29138026.

It is an arithmetic number, because the mean of its divisors is an integer number (1986143468400).

Almost surely, 2^{31233122310223} is an apocalyptic number.

31233122310223 is a deficient number, since it is larger than the sum of its proper divisors (545173184177).

31233122310223 is a wasteful number, since it uses less digits than its factorization.

31233122310223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1093902.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 31233122310223 its reverse (32201322133213), we get a palindrome (63434444443436).

The spelling of 31233122310223 in words is "thirty-one trillion, two hundred thirty-three billion, one hundred twenty-two million, three hundred ten thousand, two hundred twenty-three".