1131214044 has 24 divisors (see below), whose sum is σ = 2652014848. Its totient is φ = 375283440.

The previous prime is 1131214031. The next prime is 1131214057. The reversal of 1131214044 is 4404121311.

It is an interprime number because it is at equal distance from previous prime (1131214031) and next prime (1131214057).

It is a self number, because there is not a number n which added to its sum of digits gives 1131214044.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220852 + ... + 225915.

Almost surely, 2^1131214044 is an apocalyptic number.

It is an amenable number.

1131214044 is an abundant number, since it is smaller than the sum of its proper divisors (1520800804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1131214044 is a wasteful number, since it uses less digits than its factorization.

1131214044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446985 (or 446983 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1131214044 is about 33633.5255957504. The cubic root of 1131214044 is about 1041.9533198708.

Adding to 1131214044 its reverse (4404121311), we get a palindrome (5535335355).

The spelling of 1131214044 in words is "one billion, one hundred thirty-one million, two hundred fourteen thousand, forty-four".