31011243042133 has 2 divisors, whose sum is σ = 31011243042134. Its totient is φ = 31011243042132.

The previous prime is 31011243042067. The next prime is 31011243042163. The reversal of 31011243042133 is 33124034211013.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17344742748804 + 13666500293329 = 4164702^2 + 3696823^2 .

It is a cyclic number.

It is not a de Polignac number, because 31011243042133 - 2⁹ = 31011243041621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31011243042163) 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, 15505621521066 + 15505621521067.

It is an arithmetic number, because the mean of its divisors is an integer number (15505621521067).

Almost surely, 2^{31011243042133} is an apocalyptic number.

It is an amenable number.

31011243042133 is a deficient number, since it is larger than the sum of its proper divisors (1).

31011243042133 is an equidigital number, since it uses as much as digits as its factorization.

31011243042133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 31011243042133 its reverse (33124034211013), we get a palindrome (64135277253146).

The spelling of 31011243042133 in words is "thirty-one trillion, eleven billion, two hundred forty-three million, forty-two thousand, one hundred thirty-three".