31230230 has 8 divisors (see below), whose sum is σ = 56214432. Its totient is φ = 12492088.

The previous prime is 31230229. The next prime is 31230239. The reversal of 31230230 is 3203213.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31230239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1561502 + ... + 1561521.

It is an arithmetic number, because the mean of its divisors is an integer number (7026804).

Almost surely, 2^31230230 is an apocalyptic number.

31230230 is a deficient number, since it is larger than the sum of its proper divisors (24984202).

31230230 is a wasteful number, since it uses less digits than its factorization.

31230230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3123030.

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 31230230 is about 5588.4013814328. The cubic root of 31230230 is about 314.9138254238.

Adding to 31230230 its reverse (3203213), we get a palindrome (34433443).

The spelling of 31230230 in words is "thirty-one million, two hundred thirty thousand, two hundred thirty".