1131315045409 has 4 divisors (see below), whose sum is σ = 1132287802416. Its totient is φ = 1130342288404.

The previous prime is 1131315045397. The next prime is 1131315045457. The reversal of 1131315045409 is 9045405131311.

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 1131315045409 - 2¹⁷ = 1131314914337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131315040409) 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, 486376759 + ... + 486379084.

It is an arithmetic number, because the mean of its divisors is an integer number (283071950604).

Almost surely, 2^{1131315045409} is an apocalyptic number.

It is an amenable number.

1131315045409 is a deficient number, since it is larger than the sum of its proper divisors (972757007).

1131315045409 is an equidigital number, since it uses as much as digits as its factorization.

1131315045409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972757006.

The product of its (nonzero) digits is 32400, while the sum is 37.

The spelling of 1131315045409 in words is "one trillion, one hundred thirty-one billion, three hundred fifteen million, forty-five thousand, four hundred nine".