11287101 has 20 divisors (see below), whose sum is σ = 17567872. Its totient is φ = 6445656.

The previous prime is 11287079. The next prime is 11287103. The reversal of 11287101 is 10178211.

It is not a de Polignac number, because 11287101 - 2¹⁴ = 11270717 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11287103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6420 + ... + 7986.

Almost surely, 2^11287101 is an apocalyptic number.

It is an amenable number.

11287101 is a deficient number, since it is larger than the sum of its proper divisors (6280771).

11287101 is an frugal number, since it uses more digits than its factorization.

11287101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1598 (or 1577 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 21.

The square root of 11287101 is about 3359.6281044187. The cubic root of 11287101 is about 224.3162849705.

The spelling of 11287101 in words is "eleven million, two hundred eighty-seven thousand, one hundred one".