31423034 has 8 divisors (see below), whose sum is σ = 47592480. Its totient is φ = 15558876.

The previous prime is 31423033. The next prime is 31423039. The reversal of 31423034 is 43032413.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 31422997 and 31423015.

It is not an unprimeable number, because it can be changed into a prime (31423033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76064 + ... + 76475.

It is an arithmetic number, because the mean of its divisors is an integer number (5949060).

Almost surely, 2^31423034 is an apocalyptic number.

31423034 is a deficient number, since it is larger than the sum of its proper divisors (16169446).

31423034 is a wasteful number, since it uses less digits than its factorization.

31423034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152644.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 31423034 is about 5605.6252104471. The cubic root of 31423034 is about 315.5605505631.

Adding to 31423034 its reverse (43032413), we get a palindrome (74455447).

The spelling of 31423034 in words is "thirty-one million, four hundred twenty-three thousand, thirty-four".