11631385033 has 2 divisors, whose sum is σ = 11631385034. Its totient is φ = 11631385032.

The previous prime is 11631384979. The next prime is 11631385067. The reversal of 11631385033 is 33058313611.

11631385033 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (11631385067) can be obtained adding 11631385033 to its sum of digits (34).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11630112649 + 1272384 = 107843^2 + 1128^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11631385033 is a prime.

It is a super-2 number, since 2×11631385033² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11631385033.

It is not a weakly prime, because it can be changed into another prime (11631382033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5815692516 + 5815692517.

It is an arithmetic number, because the mean of its divisors is an integer number (5815692517).

Almost surely, 2^11631385033 is an apocalyptic number.

It is an amenable number.

11631385033 is a deficient number, since it is larger than the sum of its proper divisors (1).

11631385033 is an equidigital number, since it uses as much as digits as its factorization.

11631385033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 34.

Adding to 11631385033 its reverse (33058313611), we get a palindrome (44689698644).

The spelling of 11631385033 in words is "eleven billion, six hundred thirty-one million, three hundred eighty-five thousand, thirty-three".