1131316365 has 16 divisors (see below), whose sum is σ = 1812811968. Its totient is φ = 602466816.

The previous prime is 1131316363. The next prime is 1131316423. The reversal of 1131316365 is 5636131311.

It is not a de Polignac number, because 1131316365 - 2¹ = 1131316363 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131316363) 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, 45939 + ... + 66128.

It is an arithmetic number, because the mean of its divisors is an integer number (113300748).

Almost surely, 2^1131316365 is an apocalyptic number.

1131316365 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1131316365 is a deficient number, since it is larger than the sum of its proper divisors (681495603).

1131316365 is a wasteful number, since it uses less digits than its factorization.

1131316365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112748.

The product of its digits is 4860, while the sum is 30.

The square root of 1131316365 is about 33635.0466775356. The cubic root of 1131316365 is about 1041.9847346420.

Adding to 1131316365 its reverse (5636131311), we get a palindrome (6767447676).

The spelling of 1131316365 in words is "one billion, one hundred thirty-one million, three hundred sixteen thousand, three hundred sixty-five".