12012631 has 8 divisors (see below), whose sum is σ = 12492144. Its totient is φ = 11542080.

The previous prime is 12012629. The next prime is 12012643. The reversal of 12012631 is 13621021.

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 12012631 - 2¹ = 12012629 is a prime.

It is a super-2 number, since 2×12012631² = 288606607084322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012131) 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, 561 + ... + 4933.

It is an arithmetic number, because the mean of its divisors is an integer number (1561518).

Almost surely, 2^12012631 is an apocalyptic number.

12012631 is a deficient number, since it is larger than the sum of its proper divisors (479513).

12012631 is an equidigital number, since it uses as much as digits as its factorization.

12012631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4481.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 12012631 is about 3465.9242634541. The cubic root of 12012631 is about 229.0231474857.

Adding to 12012631 its reverse (13621021), we get a palindrome (25633652).

The spelling of 12012631 in words is "twelve million, twelve thousand, six hundred thirty-one".