31140040033 has 2 divisors, whose sum is σ = 31140040034. Its totient is φ = 31140040032.

The previous prime is 31140040031. The next prime is 31140040049. The reversal of 31140040033 is 33004004113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29724173649 + 1415866384 = 172407^2 + 37628^2 .

It is a cyclic number.

It is not a de Polignac number, because 31140040033 - 2¹ = 31140040031 is a prime.

Together with 31140040031, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (31140040031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15570020016 + 15570020017.

It is an arithmetic number, because the mean of its divisors is an integer number (15570020017).

Almost surely, 2^31140040033 is an apocalyptic number.

It is an amenable number.

31140040033 is a deficient number, since it is larger than the sum of its proper divisors (1).

31140040033 is an equidigital number, since it uses as much as digits as its factorization.

31140040033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 31140040033 its reverse (33004004113), we get a palindrome (64144044146).

The spelling of 31140040033 in words is "thirty-one billion, one hundred forty million, forty thousand, thirty-three".