31130322230 has 16 divisors (see below), whose sum is σ = 64039520160. Its totient is φ = 10673253312.

The previous prime is 31130322193. The next prime is 31130322239. The reversal of 31130322230 is 3222303113.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31130322239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222359375 + ... + 222359514.

It is an arithmetic number, because the mean of its divisors is an integer number (4002470010).

Almost surely, 2^31130322230 is an apocalyptic number.

31130322230 is an abundant number, since it is smaller than the sum of its proper divisors (32909197930).

31130322230 is a wasteful number, since it uses less digits than its factorization.

31130322230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444718903.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 31130322230 its reverse (3222303113), we get a palindrome (34352625343).

The spelling of 31130322230 in words is "thirty-one billion, one hundred thirty million, three hundred twenty-two thousand, two hundred thirty".