12031407 has 12 divisors (see below), whose sum is σ = 17438304. Its totient is φ = 7993440.

The previous prime is 12031387. The next prime is 12031417. The reversal of 12031407 is 70413021.

It is not a de Polignac number, because 12031407 - 2⁶ = 12031343 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12031407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12031417) 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, 682 + ... + 4952.

It is an arithmetic number, because the mean of its divisors is an integer number (1453192).

Almost surely, 2^12031407 is an apocalyptic number.

12031407 is a deficient number, since it is larger than the sum of its proper divisors (5406897).

12031407 is a wasteful number, since it uses less digits than its factorization.

12031407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4590 (or 4587 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 12031407 is about 3468.6318628531. The cubic root of 12031407 is about 229.1424080695.

Adding to 12031407 its reverse (70413021), we get a palindrome (82444428).

The spelling of 12031407 in words is "twelve million, thirty-one thousand, four hundred seven".