1115241512831 has 2 divisors, whose sum is σ = 1115241512832. Its totient is φ = 1115241512830.

The previous prime is 1115241512789. The next prime is 1115241512837. The reversal of 1115241512831 is 1382151425111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1115241512831 - 2⁶ = 1115241512767 is a prime.

It is a super-2 number, since 2×1115241512831² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1115241512791 and 1115241512800.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1115241512837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557620756415 + 557620756416.

It is an arithmetic number, because the mean of its divisors is an integer number (557620756416).

Almost surely, 2^{1115241512831} is an apocalyptic number.

1115241512831 is a deficient number, since it is larger than the sum of its proper divisors (1).

1115241512831 is an equidigital number, since it uses as much as digits as its factorization.

1115241512831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9600, while the sum is 35.

Adding to 1115241512831 its reverse (1382151425111), we get a palindrome (2497392937942).

The spelling of 1115241512831 in words is "one trillion, one hundred fifteen billion, two hundred forty-one million, five hundred twelve thousand, eight hundred thirty-one".