1131344012 has 6 divisors (see below), whose sum is σ = 1979852028. Its totient is φ = 565672004.

The previous prime is 1131344009. The next prime is 1131344017. The reversal of 1131344012 is 2104431311.

It is a super-2 number, since 2×1131344012² = 2559878546976512288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1131344017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 141417998 + ... + 141418005.

It is an arithmetic number, because the mean of its divisors is an integer number (329975338).

Almost surely, 2^1131344012 is an apocalyptic number.

It is an amenable number.

1131344012 is a deficient number, since it is larger than the sum of its proper divisors (848508016).

1131344012 is a wasteful number, since it uses less digits than its factorization.

1131344012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282836007 (or 282836005 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1131344012 is about 33635.4576600349. The cubic root of 1131344012 is about 1041.9932225470.

Adding to 1131344012 its reverse (2104431311), we get a palindrome (3235775323).

The spelling of 1131344012 in words is "one billion, one hundred thirty-one million, three hundred forty-four thousand, twelve".