11201971 has 8 divisors (see below), whose sum is σ = 12340224. Its totient is φ = 10083720.

The previous prime is 11201951. The next prime is 11201987. The reversal of 11201971 is 17910211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11201971 - 2⁷ = 11201843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11201951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3811 + ... + 6076.

It is an arithmetic number, because the mean of its divisors is an integer number (1542528).

Almost surely, 2^11201971 is an apocalyptic number.

11201971 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11201971 is a deficient number, since it is larger than the sum of its proper divisors (1138253).

11201971 is a wasteful number, since it uses less digits than its factorization.

11201971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10001.

The product of its (nonzero) digits is 126, while the sum is 22.

The square root of 11201971 is about 3346.9345676305. The cubic root of 11201971 is about 223.7509122649.

The spelling of 11201971 in words is "eleven million, two hundred one thousand, nine hundred seventy-one".