1131320667 has 16 divisors (see below), whose sum is σ = 1626549120. Its totient is φ = 697089600.

The previous prime is 1131320623. The next prime is 1131320681. The reversal of 1131320667 is 7660231311.

It is not a de Polignac number, because 1131320667 - 2¹⁰ = 1131319643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1131320167) 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 15 ways as a sum of consecutive naturals, for example, 239709 + ... + 244382.

It is an arithmetic number, because the mean of its divisors is an integer number (101659320).

Almost surely, 2^1131320667 is an apocalyptic number.

1131320667 is a deficient number, since it is larger than the sum of its proper divisors (495228453).

1131320667 is a wasteful number, since it uses less digits than its factorization.

1131320667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484154.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 1131320667 is about 33635.1106286273. The cubic root of 1131320667 is about 1041.9860554080.

Adding to 1131320667 its reverse (7660231311), we get a palindrome (8791551978).

The spelling of 1131320667 in words is "one billion, one hundred thirty-one million, three hundred twenty thousand, six hundred sixty-seven".