31103133323 has 32 divisors (see below), whose sum is σ = 33716390400. Its totient is φ = 28604980224.

The previous prime is 31103133317. The next prime is 31103133353. The reversal of 31103133323 is 32333130113.

It is a cyclic number.

It is not a de Polignac number, because 31103133323 - 2¹⁰ = 31103132299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31103133353) 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 31 ways as a sum of consecutive naturals, for example, 21494186 + ... + 21495632.

It is an arithmetic number, because the mean of its divisors is an integer number (1053637200).

Almost surely, 2^31103133323 is an apocalyptic number.

31103133323 is a deficient number, since it is larger than the sum of its proper divisors (2613257077).

31103133323 is a wasteful number, since it uses less digits than its factorization.

31103133323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1779.

The product of its (nonzero) digits is 1458, while the sum is 23.

Adding to 31103133323 its reverse (32333130113), we get a palindrome (63436263436).

The spelling of 31103133323 in words is "thirty-one billion, one hundred three million, one hundred thirty-three thousand, three hundred twenty-three".