12071031 has 16 divisors (see below), whose sum is σ = 18480384. Its totient is φ = 6865344.

The previous prime is 12071029. The next prime is 12071053. The reversal of 12071031 is 13017021.

12071031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12071031 - 2¹ = 12071029 is a prime.

It is a super-2 number, since 2×12071031² = 291419578805922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12071031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12071131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3660 + ... + 6126.

It is an arithmetic number, because the mean of its divisors is an integer number (1155024).

Almost surely, 2^12071031 is an apocalyptic number.

12071031 is a deficient number, since it is larger than the sum of its proper divisors (6409353).

12071031 is a wasteful number, since it uses less digits than its factorization.

12071031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2710.

The product of its (nonzero) digits is 42, while the sum is 15.

The square root of 12071031 is about 3474.3389299261. The cubic root of 12071031 is about 229.3936834611.

Adding to 12071031 its reverse (13017021), we get a palindrome (25088052).

The spelling of 12071031 in words is "twelve million, seventy-one thousand, thirty-one".