12491011 has 8 divisors (see below), whose sum is σ = 13653584. Its totient is φ = 11357280.

The previous prime is 12491009. The next prime is 12491023. The reversal of 12491011 is 11019421.

12491011 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 a cyclic number.

It is not a de Polignac number, because 12491011 - 2¹ = 12491009 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12491011.

It is not an unprimeable number, because it can be changed into a prime (12491071) 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, 6300 + ... + 8041.

It is an arithmetic number, because the mean of its divisors is an integer number (1706698).

Almost surely, 2^12491011 is an apocalyptic number.

12491011 is a deficient number, since it is larger than the sum of its proper divisors (1162573).

12491011 is a wasteful number, since it uses less digits than its factorization.

12491011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14421.

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 12491011 is about 3534.2624407364. The cubic root of 12491011 is about 232.0237973508.

The spelling of 12491011 in words is "twelve million, four hundred ninety-one thousand, eleven".