12031013 has 8 divisors (see below), whose sum is σ = 12574848. Its totient is φ = 11499264.

The previous prime is 12031003. The next prime is 12031039. The reversal of 12031013 is 31013021.

12031013 is digitally balanced in base 2 and base 3, because in such bases 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 12031013 - 2⁸ = 12030757 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12030985 and 12031003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12031003) 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, 956 + ... + 4997.

It is an arithmetic number, because the mean of its divisors is an integer number (1571856).

Almost surely, 2^12031013 is an apocalyptic number.

It is an amenable number.

12031013 is a deficient number, since it is larger than the sum of its proper divisors (543835).

12031013 is an equidigital number, since it uses as much as digits as its factorization.

12031013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6043.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 12031013 is about 3468.5750676611. The cubic root of 12031013 is about 229.1399067523.

Adding to 12031013 its reverse (31013021), we get a palindrome (43044034).

The spelling of 12031013 in words is "twelve million, thirty-one thousand, thirteen".