1131312201 has 32 divisors (see below), whose sum is σ = 1595455488. Its totient is φ = 711659520.

The previous prime is 1131312181. The next prime is 1131312229. The reversal of 1131312201 is 1022131311.

It is a happy number.

It is not a de Polignac number, because 1131312201 - 2¹⁸ = 1131050057 is a prime.

It is a super-2 number, since 2×1131312201² = 2559734592262928802, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1131312251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2322780 + ... + 2323266.

It is an arithmetic number, because the mean of its divisors is an integer number (49857984).

Almost surely, 2^1131312201 is an apocalyptic number.

It is an amenable number.

1131312201 is a deficient number, since it is larger than the sum of its proper divisors (464143287).

1131312201 is a wasteful number, since it uses less digits than its factorization.

1131312201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 901.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 1131312201 is about 33634.9847777578. The cubic root of 1131312201 is about 1041.9834562405.

Adding to 1131312201 its reverse (1022131311), we get a palindrome (2153443512).

The spelling of 1131312201 in words is "one billion, one hundred thirty-one million, three hundred twelve thousand, two hundred one".