31321023033223 has 32 divisors (see below), whose sum is σ = 39104424350208. Its totient is φ = 24371733513600.

The previous prime is 31321023033211. The next prime is 31321023033233. The reversal of 31321023033223 is 32233032012313.

It is not a de Polignac number, because 31321023033223 - 2⁹ = 31321023032711 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31321023033191 and 31321023033200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31321023033233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 264451888 + ... + 264570298.

It is an arithmetic number, because the mean of its divisors is an integer number (1222013260944).

Almost surely, 2^{31321023033223} is an apocalyptic number.

31321023033223 is a deficient number, since it is larger than the sum of its proper divisors (7783401316985).

31321023033223 is a wasteful number, since it uses less digits than its factorization.

31321023033223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123223.

The product of its (nonzero) digits is 11664, while the sum is 28.

Adding to 31321023033223 its reverse (32233032012313), we get a palindrome (63554055045536).

The spelling of 31321023033223 in words is "thirty-one trillion, three hundred twenty-one billion, twenty-three million, thirty-three thousand, two hundred twenty-three".