13012011 has 12 divisors (see below), whose sum is σ = 19034080. Its totient is φ = 8564400.

The previous prime is 13012007. The next prime is 13012019. The reversal of 13012011 is 11021031.

It is not a de Polignac number, because 13012011 - 2² = 13012007 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13011984 and 13012002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13012019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8440 + ... + 9861.

Almost surely, 2^13012011 is an apocalyptic number.

13012011 is a deficient number, since it is larger than the sum of its proper divisors (6022069).

13012011 is a wasteful number, since it uses less digits than its factorization.

13012011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18386 (or 18383 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 13012011 is about 3607.2165169283. The cubic root of 13012011 is about 235.2058615608.

Adding to 13012011 its reverse (11021031), we get a palindrome (24033042).

The spelling of 13012011 in words is "thirteen million, twelve thousand, eleven".