31235230 has 16 divisors (see below), whose sum is σ = 60548544. Its totient is φ = 11532960.

The previous prime is 31235203. The next prime is 31235251. The reversal of 31235230 is 3253213.

It is a junction number, because it is equal to n+sod(n) for n = 31235198 and 31235207.

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, 120006 + ... + 120265.

It is an arithmetic number, because the mean of its divisors is an integer number (3784284).

Almost surely, 2^31235230 is an apocalyptic number.

31235230 is a deficient number, since it is larger than the sum of its proper divisors (29313314).

31235230 is a wasteful number, since it uses less digits than its factorization.

31235230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240291.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 31235230 is about 5588.8487186540. The cubic root of 31235230 is about 314.9306305631.

Adding to 31235230 its reverse (3253213), we get a palindrome (34488443).

The spelling of 31235230 in words is "thirty-one million, two hundred thirty-five thousand, two hundred thirty".