31331330232230 has 16 divisors (see below), whose sum is σ = 64453022192160. Its totient is φ = 10742170365312.

The previous prime is 31331330232161. The next prime is 31331330232239. The reversal of 31331330232230 is 3223203313313.

It is a junction number, because it is equal to n+sod(n) for n = 31331330232193 and 31331330232202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31331330232239) 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, 223795215875 + ... + 223795216014.

It is an arithmetic number, because the mean of its divisors is an integer number (4028313887010).

Almost surely, 2^{31331330232230} is an apocalyptic number.

31331330232230 is an abundant number, since it is smaller than the sum of its proper divisors (33121691959930).

31331330232230 is a wasteful number, since it uses less digits than its factorization.

31331330232230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447590431903.

The product of its (nonzero) digits is 17496, while the sum is 29.

Adding to 31331330232230 its reverse (3223203313313), we get a palindrome (34554533545543).

The spelling of 31331330232230 in words is "thirty-one trillion, three hundred thirty-one billion, three hundred thirty million, two hundred thirty-two thousand, two hundred thirty".