1131013121003 has 4 divisors (see below), whose sum is σ = 1157315751768. Its totient is φ = 1104710490240.

The previous prime is 1131013120999. The next prime is 1131013121023. The reversal of 1131013121003 is 3001213101311.

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

It is a cyclic number.

It is not a de Polignac number, because 1131013121003 - 2² = 1131013120999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131013121023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13151315318 + ... + 13151315403.

It is an arithmetic number, because the mean of its divisors is an integer number (289328937942).

Almost surely, 2^{1131013121003} is an apocalyptic number.

1131013121003 is a deficient number, since it is larger than the sum of its proper divisors (26302630765).

1131013121003 is an equidigital number, since it uses as much as digits as its factorization.

1131013121003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26302630764.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 1131013121003 its reverse (3001213101311), we get a palindrome (4132226222314).

The spelling of 1131013121003 in words is "one trillion, one hundred thirty-one billion, thirteen million, one hundred twenty-one thousand, three".