1121331210103 has 4 divisors (see below), whose sum is σ = 1207587457048. Its totient is φ = 1035074963160.

The previous prime is 1121331210073. The next prime is 1121331210127. The reversal of 1121331210103 is 3010121331211.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1121331210103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121331210203) 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, 43128123453 + ... + 43128123478.

It is an arithmetic number, because the mean of its divisors is an integer number (301896864262).

Almost surely, 2^{1121331210103} is an apocalyptic number.

1121331210103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1121331210103 is a deficient number, since it is larger than the sum of its proper divisors (86256246945).

1121331210103 is an equidigital number, since it uses as much as digits as its factorization.

1121331210103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86256246944.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 1121331210103 its reverse (3010121331211), we get a palindrome (4131452541314).

The spelling of 1121331210103 in words is "one trillion, one hundred twenty-one billion, three hundred thirty-one million, two hundred ten thousand, one hundred three".