1131201313 has 16 divisors (see below), whose sum is σ = 1269836352. Its totient is φ = 998920000.

The previous prime is 1131201299. The next prime is 1131201329. The reversal of 1131201313 is 3131021311.

It is a cyclic number.

It is not a de Polignac number, because 1131201313 - 2¹³ = 1131193121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131201343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49278 + ... + 68488.

It is an arithmetic number, because the mean of its divisors is an integer number (79364772).

Almost surely, 2^1131201313 is an apocalyptic number.

It is an amenable number.

1131201313 is a deficient number, since it is larger than the sum of its proper divisors (138635039).

1131201313 is a wasteful number, since it uses less digits than its factorization.

1131201313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19376.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 1131201313 is about 33633.3363346546. The cubic root of 1131201313 is about 1041.9494110445.

Adding to 1131201313 its reverse (3131021311), we get a palindrome (4262222624).

The spelling of 1131201313 in words is "one billion, one hundred thirty-one million, two hundred one thousand, three hundred thirteen".