1131185147905 has 16 divisors (see below), whose sum is σ = 1394237047104. Its totient is φ = 880409355840.

The previous prime is 1131185147903. The next prime is 1131185148013. The reversal of 1131185147905 is 5097415811311.

It is not a de Polignac number, because 1131185147905 - 2¹ = 1131185147903 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131185147903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1784574 + ... + 2333896.

It is an arithmetic number, because the mean of its divisors is an integer number (87139815444).

Almost surely, 2^{1131185147905} is an apocalyptic number.

It is an amenable number.

1131185147905 is a deficient number, since it is larger than the sum of its proper divisors (263051899199).

1131185147905 is a wasteful number, since it uses less digits than its factorization.

1131185147905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560496.

The product of its (nonzero) digits is 151200, while the sum is 46.

The spelling of 1131185147905 in words is "one trillion, one hundred thirty-one billion, one hundred eighty-five million, one hundred forty-seven thousand, nine hundred five".