1131635112 has 16 divisors (see below), whose sum is σ = 2829087840. Its totient is φ = 377211696.

The previous prime is 1131635111. The next prime is 1131635143. The reversal of 1131635112 is 2115361311.

It is a super-2 number, since 2×1131635112² = 2561196053422505088, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 47151463 = 1131635112 / (1 + 1 + 3 + 1 + 6 + 3 + 5 + 1 + 1 + 2).

It is not an unprimeable number, because it can be changed into a prime (1131635111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23575708 + ... + 23575755.

It is an arithmetic number, because the mean of its divisors is an integer number (176817990).

Almost surely, 2^1131635112 is an apocalyptic number.

1131635112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1131635112 is an abundant number, since it is smaller than the sum of its proper divisors (1697452728).

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

1131635112 is a wasteful number, since it uses less digits than its factorization.

1131635112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47151472 (or 47151468 counting only the distinct ones).

The product of its digits is 540, while the sum is 24.

The square root of 1131635112 is about 33639.7846604285. The cubic root of 1131635112 is about 1042.0825847604.

Adding to 1131635112 its reverse (2115361311), we get a palindrome (3246996423).

The spelling of 1131635112 in words is "one billion, one hundred thirty-one million, six hundred thirty-five thousand, one hundred twelve".