1131163260603 has 4 divisors (see below), whose sum is σ = 1508217680808. Its totient is φ = 754108840400.

The previous prime is 1131163260581. The next prime is 1131163260649. The reversal of 1131163260603 is 3060623611311.

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 1131163260603 - 2⁸ = 1131163260347 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1131163260653) 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, 188527210098 + ... + 188527210103.

It is an arithmetic number, because the mean of its divisors is an integer number (377054420202).

Almost surely, 2^{1131163260603} is an apocalyptic number.

1131163260603 is a deficient number, since it is larger than the sum of its proper divisors (377054420205).

1131163260603 is an equidigital number, since it uses as much as digits as its factorization.

1131163260603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377054420204.

The product of its (nonzero) digits is 11664, while the sum is 33.

Adding to 1131163260603 its reverse (3060623611311), we get a palindrome (4191786871914).

The spelling of 1131163260603 in words is "one trillion, one hundred thirty-one billion, one hundred sixty-three million, two hundred sixty thousand, six hundred three".