10971111 has 4 divisors (see below), whose sum is σ = 14628152. Its totient is φ = 7314072.

The previous prime is 10971101. The next prime is 10971143. The reversal of 10971111 is 11117901.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 10971111 - 2⁶ = 10971047 is a prime.

It is a Duffinian number.

10971111 is a modest number, since divided by 1111 gives 1097 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10971101) 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, 1828516 + ... + 1828521.

It is an arithmetic number, because the mean of its divisors is an integer number (3657038).

Almost surely, 2^10971111 is an apocalyptic number.

10971111 is a deficient number, since it is larger than the sum of its proper divisors (3657041).

10971111 is an equidigital number, since it uses as much as digits as its factorization.

10971111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3657040.

The product of its (nonzero) digits is 63, while the sum is 21.

The square root of 10971111 is about 3312.2667465046. The cubic root of 10971111 is about 222.2031457606.

The spelling of 10971111 in words is "ten million, nine hundred seventy-one thousand, one hundred eleven".