31132232223 has 16 divisors (see below), whose sum is σ = 42152309472. Its totient is φ = 20435760000.

The previous prime is 31132232179. The next prime is 31132232251. The reversal of 31132232223 is 32223223113.

It is not a de Polignac number, because 31132232223 - 2⁸ = 31132231967 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31132232193 and 31132232202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31132232293) 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, 228988 + ... + 338673.

It is an arithmetic number, because the mean of its divisors is an integer number (2634519342).

Almost surely, 2^31132232223 is an apocalyptic number.

31132232223 is a deficient number, since it is larger than the sum of its proper divisors (11020077249).

31132232223 is a wasteful number, since it uses less digits than its factorization.

31132232223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567946.

The product of its digits is 2592, while the sum is 24.

Adding to 31132232223 its reverse (32223223113), we get a palindrome (63355455336).

The spelling of 31132232223 in words is "thirty-one billion, one hundred thirty-two million, two hundred thirty-two thousand, two hundred twenty-three".