12811011 has 8 divisors (see below), whose sum is σ = 17670480. Its totient is φ = 8246112.

The previous prime is 12811009. The next prime is 12811049. The reversal of 12811011 is 11011821.

12811011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12811011 - 2¹ = 12811009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12811061) 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, 73540 + ... + 73713.

It is an arithmetic number, because the mean of its divisors is an integer number (2208810).

Almost surely, 2^12811011 is an apocalyptic number.

12811011 is a deficient number, since it is larger than the sum of its proper divisors (4859469).

12811011 is a wasteful number, since it uses less digits than its factorization.

12811011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147285.

The product of its (nonzero) digits is 16, while the sum is 15.

The square root of 12811011 is about 3579.2472672337. The cubic root of 12811011 is about 233.9884755812.

Adding to 12811011 its reverse (11011821), we get a palindrome (23822832).

The spelling of 12811011 in words is "twelve million, eight hundred eleven thousand, eleven".