1101252287 has 16 divisors (see below), whose sum is σ = 1133489280. Its totient is φ = 1069565472.

The previous prime is 1101252283. The next prime is 1101252289. The reversal of 1101252287 is 7822521011.

It is a cyclic number.

It is not a de Polignac number, because 1101252287 - 2² = 1101252283 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101252281) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2952233 + ... + 2952605.

It is an arithmetic number, because the mean of its divisors is an integer number (70843080).

Almost surely, 2^1101252287 is an apocalyptic number.

1101252287 is a deficient number, since it is larger than the sum of its proper divisors (32236993).

1101252287 is a wasteful number, since it uses less digits than its factorization.

1101252287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902.

The product of its (nonzero) digits is 2240, while the sum is 29.

The square root of 1101252287 is about 33185.1214703216. The cubic root of 1101252287 is about 1032.6716974927.

Adding to 1101252287 its reverse (7822521011), we get a palindrome (8923773298).

The spelling of 1101252287 in words is "one billion, one hundred one million, two hundred fifty-two thousand, two hundred eighty-seven".