1131031033013 has 4 divisors (see below), whose sum is σ = 1292606894880. Its totient is φ = 969455171148.

The previous prime is 1131031033003. The next prime is 1131031033079. The reversal of 1131031033013 is 3103301301311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1131031033013 - 2¹⁰ = 1131031031989 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131031033003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80787930923 + ... + 80787930936.

It is an arithmetic number, because the mean of its divisors is an integer number (323151723720).

Almost surely, 2^{1131031033013} is an apocalyptic number.

It is an amenable number.

1131031033013 is a deficient number, since it is larger than the sum of its proper divisors (161575861867).

1131031033013 is an equidigital number, since it uses as much as digits as its factorization.

1131031033013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161575861866.

The product of its (nonzero) digits is 243, while the sum is 20.

Adding to 1131031033013 its reverse (3103301301311), we get a palindrome (4234332334324).

The spelling of 1131031033013 in words is "one trillion, one hundred thirty-one billion, thirty-one million, thirty-three thousand, thirteen".