31030042 has 8 divisors (see below), whose sum is σ = 46717632. Its totient is φ = 15457500.

The previous prime is 31030001. The next prime is 31030067. The reversal of 31030042 is 24003013.

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

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, 28084 + ... + 29167.

It is an arithmetic number, because the mean of its divisors is an integer number (5839704).

Almost surely, 2^31030042 is an apocalyptic number.

31030042 is a deficient number, since it is larger than the sum of its proper divisors (15687590).

31030042 is a wasteful number, since it uses less digits than its factorization.

31030042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57524.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 31030042 is about 5570.4615607686. The cubic root of 31030042 is about 314.2395092051.

Adding to 31030042 its reverse (24003013), we get a palindrome (55033055).

The spelling of 31030042 in words is "thirty-one million, thirty thousand, forty-two".