11901711 has 4 divisors (see below), whose sum is σ = 15868952. Its totient is φ = 7934472.

The previous prime is 11901709. The next prime is 11901727. The reversal of 11901711 is 11710911.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11710911 = 3 ⋅3903637.

It is not a de Polignac number, because 11901711 - 2¹ = 11901709 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 (11901761) 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, 1983616 + ... + 1983621.

It is an arithmetic number, because the mean of its divisors is an integer number (3967238).

Almost surely, 2^11901711 is an apocalyptic number.

11901711 is a deficient number, since it is larger than the sum of its proper divisors (3967241).

11901711 is an equidigital number, since it uses as much as digits as its factorization.

11901711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3967240.

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

The square root of 11901711 is about 3449.8856502789. The cubic root of 11901711 is about 228.3160628894.

The spelling of 11901711 in words is "eleven million, nine hundred one thousand, seven hundred eleven".