1131330013123 has 4 divisors (see below), whose sum is σ = 1131333112000. Its totient is φ = 1131326914248.

The previous prime is 1131330013103. The next prime is 1131330013141. The reversal of 1131330013123 is 3213100331311.

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 1131330013123 - 2⁵ = 1131330013091 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1131330013094 and 1131330013103.

It is not an unprimeable number, because it can be changed into a prime (1131330013103) 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 in 3 ways as a sum of consecutive naturals, for example, 915315 + ... + 1760812.

It is an arithmetic number, because the mean of its divisors is an integer number (282833278000).

Almost surely, 2^{1131330013123} is an apocalyptic number.

1131330013123 is a deficient number, since it is larger than the sum of its proper divisors (3098877).

1131330013123 is an equidigital number, since it uses as much as digits as its factorization.

1131330013123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3098876.

The product of its (nonzero) digits is 486, while the sum is 22.

Adding to 1131330013123 its reverse (3213100331311), we get a palindrome (4344430344434).

The spelling of 1131330013123 in words is "one trillion, one hundred thirty-one billion, three hundred thirty million, thirteen thousand, one hundred twenty-three".