1173240537631 has 2 divisors, whose sum is σ = 1173240537632. Its totient is φ = 1173240537630.

The previous prime is 1173240537587. The next prime is 1173240537649. The reversal of 1173240537631 is 1367350423711.

It is a strong prime.

It is an emirp because it is prime and its reverse (1367350423711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1173240537631 - 2²⁵ = 1173206983199 is a prime.

It is a super-2 number, since 2×1173240537631² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1173240535631) 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, 586620268815 + 586620268816.

It is an arithmetic number, because the mean of its divisors is an integer number (586620268816).

Almost surely, 2^{1173240537631} is an apocalyptic number.

1173240537631 is a deficient number, since it is larger than the sum of its proper divisors (1).

1173240537631 is an equidigital number, since it uses as much as digits as its factorization.

1173240537631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 317520, while the sum is 43.

The spelling of 1173240537631 in words is "one trillion, one hundred seventy-three billion, two hundred forty million, five hundred thirty-seven thousand, six hundred thirty-one".