31233110313203 has 2 divisors, whose sum is σ = 31233110313204. Its totient is φ = 31233110313202.

The previous prime is 31233110313109. The next prime is 31233110313247. The reversal of 31233110313203 is 30231301133213.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31233110313203 is a prime.

It is a super-2 number, since 2×31233110313203² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31233110313283) 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 as a sum of consecutive naturals, namely, 15616555156601 + 15616555156602.

It is an arithmetic number, because the mean of its divisors is an integer number (15616555156602).

Almost surely, 2^{31233110313203} is an apocalyptic number.

31233110313203 is a deficient number, since it is larger than the sum of its proper divisors (1).

31233110313203 is an equidigital number, since it uses as much as digits as its factorization.

31233110313203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 26.

Adding to 31233110313203 its reverse (30231301133213), we get a palindrome (61464411446416).

The spelling of 31233110313203 in words is "thirty-one trillion, two hundred thirty-three billion, one hundred ten million, three hundred thirteen thousand, two hundred three".