1131202312 has 16 divisors (see below), whose sum is σ = 2122053840. Its totient is φ = 565321296.

The previous prime is 1131202309. The next prime is 1131202313. The reversal of 1131202312 is 2132021311.

It is not an unprimeable number, because it can be changed into a prime (1131202313) 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 3 ways as a sum of consecutive naturals, for example, 17278 + ... + 50605.

It is an arithmetic number, because the mean of its divisors is an integer number (132628365).

Almost surely, 2^1131202312 is an apocalyptic number.

It is an amenable number.

1131202312 is a deficient number, since it is larger than the sum of its proper divisors (990851528).

1131202312 is a wasteful number, since it uses less digits than its factorization.

1131202312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69972 (or 69968 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1131202312 is about 33633.3511859880. The cubic root of 1131202312 is about 1041.9497177707.

Adding to 1131202312 its reverse (2132021311), we get a palindrome (3263223623).

The spelling of 1131202312 in words is "one billion, one hundred thirty-one million, two hundred two thousand, three hundred twelve".