12013011 has 12 divisors (see below), whose sum is σ = 17404192. Its totient is φ = 7984656.

The previous prime is 12013009. The next prime is 12013013. The reversal of 12013011 is 11031021.

It is an interprime number because it is at equal distance from previous prime (12013009) and next prime (12013013).

It is not a de Polignac number, because 12013011 - 2¹ = 12013009 is a prime.

It is a super-2 number, since 2×12013011² = 288624866572242, which contains 22 as substring.

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 = 12012984 and 12013002.

It is not an unprimeable number, because it can be changed into a prime (12013013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1485 + ... + 5121.

Almost surely, 2^12013011 is an apocalyptic number.

12013011 is a deficient number, since it is larger than the sum of its proper divisors (5391181).

12013011 is a wasteful number, since it uses less digits than its factorization.

12013011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4010 (or 4007 counting only the distinct ones).

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

The square root of 12013011 is about 3465.9790824527. The cubic root of 12013011 is about 229.0255623849.

Adding to 12013011 its reverse (11031021), we get a palindrome (23044032).

It can be divided in two parts, 120 and 13011, that added together give a palindrome (13131).

The spelling of 12013011 in words is "twelve million, thirteen thousand, eleven".