11111011000631 has 2 divisors, whose sum is σ = 11111011000632. Its totient is φ = 11111011000630.

The previous prime is 11111011000589. The next prime is 11111011000637. The reversal of 11111011000631 is 13600011011111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11111011000631 - 2³⁴ = 11093831131447 is a prime.

It is a super-2 number, since 2×11111011000631² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11111011000637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555505500315 + 5555505500316.

It is an arithmetic number, because the mean of its divisors is an integer number (5555505500316).

Almost surely, 2^{11111011000631} is an apocalyptic number.

11111011000631 is a deficient number, since it is larger than the sum of its proper divisors (1).

11111011000631 is an equidigital number, since it uses as much as digits as its factorization.

11111011000631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 17.

Adding to 11111011000631 its reverse (13600011011111), we get a palindrome (24711022011742).

The spelling of 11111011000631 in words is "eleven trillion, one hundred eleven billion, eleven million, six hundred thirty-one", and thus it is an aban number.