1003110231121 has 4 divisors (see below), whose sum is σ = 1003180901812. Its totient is φ = 1003039560432.

The previous prime is 1003110231119. The next prime is 1003110231161. The reversal of 1003110231121 is 1211320113001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 954403948096 + 48706283025 = 976936^2 + 220695^2 .

It is a cyclic number.

It is not a de Polignac number, because 1003110231121 - 2¹ = 1003110231119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1003110231095 and 1003110231104.

It is not an unprimeable number, because it can be changed into a prime (1003110231161) 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 in 3 ways as a sum of consecutive naturals, for example, 35314050 + ... + 35342443.

It is an arithmetic number, because the mean of its divisors is an integer number (250795225453).

Almost surely, 2^{1003110231121} is an apocalyptic number.

It is an amenable number.

1003110231121 is a deficient number, since it is larger than the sum of its proper divisors (70670691).

1003110231121 is an equidigital number, since it uses as much as digits as its factorization.

1003110231121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70670690.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 1003110231121 its reverse (1211320113001), we get a palindrome (2214430344122).

The spelling of 1003110231121 in words is "one trillion, three billion, one hundred ten million, two hundred thirty-one thousand, one hundred twenty-one".