1131178104 has 48 divisors (see below), whose sum is σ = 3501267120. Its totient is φ = 323193600.

The previous prime is 1131178063. The next prime is 1131178123. The reversal of 1131178104 is 4018711311.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1121697 + ... + 1122704.

It is an arithmetic number, because the mean of its divisors is an integer number (72943065).

Almost surely, 2^1131178104 is an apocalyptic number.

1131178104 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1131178104 is an abundant number, since it is smaller than the sum of its proper divisors (2370089016).

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

1131178104 is a wasteful number, since it uses less digits than its factorization.

1131178104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2244420 (or 2244413 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 27.

The square root of 1131178104 is about 33632.9913031832. The cubic root of 1131178104 is about 1041.9422850599.

Adding to 1131178104 its reverse (4018711311), we get a palindrome (5149889415).

The spelling of 1131178104 in words is "one billion, one hundred thirty-one million, one hundred seventy-eight thousand, one hundred four".