31043132 has 12 divisors (see below), whose sum is σ = 54471480. Its totient is φ = 15479856.

The previous prime is 31043101. The next prime is 31043141. The reversal of 31043132 is 23134013.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 31043132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8723 + ... + 11754.

It is an arithmetic number, because the mean of its divisors is an integer number (4539290).

Almost surely, 2^31043132 is an apocalyptic number.

It is an amenable number.

31043132 is a deficient number, since it is larger than the sum of its proper divisors (23428348).

31043132 is a wasteful number, since it uses less digits than its factorization.

31043132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20860 (or 20858 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 31043132 is about 5571.6363844027. The cubic root of 31043132 is about 314.2836902270.

Adding to 31043132 its reverse (23134013), we get a palindrome (54177145).

The spelling of 31043132 in words is "thirty-one million, forty-three thousand, one hundred thirty-two".