31132223003321 has 12 divisors (see below), whose sum is σ = 35399706411300. Its totient is φ = 27326089153440.

The previous prime is 31132223003291. The next prime is 31132223003369. The reversal of 31132223003321 is 12330032223113.

It can be written as a sum of positive squares in 2 ways, for example, as 23391113182096 + 7741109821225 = 4836436^2 + 2782285^2 .

It is a de Polignac number, because none of the positive numbers 2^k-31132223003321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31132223003221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4436049926 + ... + 4436056943.

It is an arithmetic number, because the mean of its divisors is an integer number (2949975534275).

Almost surely, 2^{31132223003321} is an apocalyptic number.

It is an amenable number.

31132223003321 is a deficient number, since it is larger than the sum of its proper divisors (4267483407979).

31132223003321 is a wasteful number, since it uses less digits than its factorization.

31132223003321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8872106920 (or 8872106909 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 31132223003321 its reverse (12330032223113), we get a palindrome (43462255226434).

The spelling of 31132223003321 in words is "thirty-one trillion, one hundred thirty-two billion, two hundred twenty-three million, three thousand, three hundred twenty-one".