10031321331 has 12 divisors (see below), whose sum is σ = 14499449952. Its totient is φ = 6683041296.

The previous prime is 10031321327. The next prime is 10031321347. The reversal of 10031321331 is 13312313001.

It is a happy number.

10031321331 is a `hidden beast` number, since 1 + 0 + 0 + 313 + 21 + 331 = 666.

It is not a de Polignac number, because 10031321331 - 2² = 10031321327 is a prime.

It is a super-2 number, since 2×10031321331² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10031321371) 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 11 ways as a sum of consecutive naturals, for example, 361396 + ... + 388161.

It is an arithmetic number, because the mean of its divisors is an integer number (1208287496).

Almost surely, 2^10031321331 is an apocalyptic number.

10031321331 is a deficient number, since it is larger than the sum of its proper divisors (4468128621).

10031321331 is a wasteful number, since it uses less digits than its factorization.

10031321331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751050 (or 751047 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 10031321331 its reverse (13312313001), we get a palindrome (23343634332).

The spelling of 10031321331 in words is "ten billion, thirty-one million, three hundred twenty-one thousand, three hundred thirty-one".