1113121101031 has 2 divisors, whose sum is σ = 1113121101032. Its totient is φ = 1113121101030.

The previous prime is 1113121101011. The next prime is 1113121101067. The reversal of 1113121101031 is 1301011213111.

It is a weak prime.

It is an emirp because it is prime and its reverse (1301011213111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1113121101031 - 2²⁷ = 1112986883303 is a prime.

It is a super-2 number, since 2×1113121101031² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1113121100996 and 1113121101014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1113121101011) 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, 556560550515 + 556560550516.

It is an arithmetic number, because the mean of its divisors is an integer number (556560550516).

Almost surely, 2^{1113121101031} is an apocalyptic number.

1113121101031 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113121101031 is an equidigital number, since it uses as much as digits as its factorization.

1113121101031 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 16.

Adding to 1113121101031 its reverse (1301011213111), we get a palindrome (2414132314142).

The spelling of 1113121101031 in words is "one trillion, one hundred thirteen billion, one hundred twenty-one million, one hundred one thousand, thirty-one".