31012213313033 has 2 divisors, whose sum is σ = 31012213313034. Its totient is φ = 31012213313032.

The previous prime is 31012213313027. The next prime is 31012213313057. The reversal of 31012213313033 is 33031331221013.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24449435061769 + 6562778251264 = 4944637^2 + 2561792^2 .

It is a cyclic number.

It is not a de Polignac number, because 31012213313033 - 2⁴ = 31012213313017 is a prime.

It is a super-2 number, since 2×31012213313033² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31012213312993 and 31012213313011.

It is not a weakly prime, because it can be changed into another prime (31012213313233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15506106656516 + 15506106656517.

It is an arithmetic number, because the mean of its divisors is an integer number (15506106656517).

Almost surely, 2^{31012213313033} is an apocalyptic number.

It is an amenable number.

31012213313033 is a deficient number, since it is larger than the sum of its proper divisors (1).

31012213313033 is an equidigital number, since it uses as much as digits as its factorization.

31012213313033 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 31012213313033 its reverse (33031331221013), we get a palindrome (64043544534046).

The spelling of 31012213313033 in words is "thirty-one trillion, twelve billion, two hundred thirteen million, three hundred thirteen thousand, thirty-three".