31031014 has 24 divisors (see below), whose sum is σ = 55473768. Its totient is φ = 12972960.

The previous prime is 31031003. The next prime is 31031017. The reversal of 31031014 is 41013013.

It is a junction number, because it is equal to n+sod(n) for n = 31030985 and 31031003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31031017) 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 11 ways as a sum of consecutive naturals, for example, 157 + ... + 7879.

It is an arithmetic number, because the mean of its divisors is an integer number (2311407).

Almost surely, 2^31031014 is an apocalyptic number.

31031014 is a deficient number, since it is larger than the sum of its proper divisors (24442754).

31031014 is a wasteful number, since it uses less digits than its factorization.

31031014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7780 (or 7773 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 31031014 is about 5570.5488059975. The cubic root of 31031014 is about 314.2427903008.

Adding to 31031014 its reverse (41013013), we get a palindrome (72044027).

The spelling of 31031014 in words is "thirty-one million, thirty-one thousand, fourteen".