26312011 has 4 divisors (see below), whose sum is σ = 28704024. Its totient is φ = 23920000.

The previous prime is 26311981. The next prime is 26312051. The reversal of 26312011 is 11021362.

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

It is a cyclic number.

It is not a de Polignac number, because 26312011 - 2¹¹ = 26309963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26312051) 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, 1195990 + ... + 1196011.

It is an arithmetic number, because the mean of its divisors is an integer number (7176006).

Almost surely, 2^26312011 is an apocalyptic number.

26312011 is a deficient number, since it is larger than the sum of its proper divisors (2392013).

26312011 is a wasteful number, since it uses less digits than its factorization.

26312011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2392012.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 26312011 is about 5129.5234671459. The cubic root of 26312011 is about 297.4299380716.

Adding to 26312011 its reverse (11021362), we get a palindrome (37333373).

The spelling of 26312011 in words is "twenty-six million, three hundred twelve thousand, eleven".