12031670 has 16 divisors (see below), whose sum is σ = 24751008. Its totient is φ = 4125120.

The previous prime is 12031667. The next prime is 12031687. The reversal of 12031670 is 7613021.

It is a happy number.

It is a super-2 number, since 2×12031670² = 289522165977800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85871 + ... + 86010.

It is an arithmetic number, because the mean of its divisors is an integer number (1546938).

Almost surely, 2^12031670 is an apocalyptic number.

12031670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12031670 is an abundant number, since it is smaller than the sum of its proper divisors (12719338).

12031670 is a wasteful number, since it uses less digits than its factorization.

12031670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171895.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 12031670 is about 3468.6697738470. The cubic root of 12031670 is about 229.1440777000.

Adding to 12031670 its reverse (7613021), we get a palindrome (19644691).

It can be divided in two parts, 1203 and 1670, that multiplied together give a triangular number (2009010 = T₂₀₀₄).

The spelling of 12031670 in words is "twelve million, thirty-one thousand, six hundred seventy".