31233320230 has 32 divisors (see below), whose sum is σ = 65987931456. Its totient is φ = 10419145344.

The previous prime is 31233320191. The next prime is 31233320299. The reversal of 31233320230 is 3202333213.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 6027009 + ... + 6032188.

It is an arithmetic number, because the mean of its divisors is an integer number (2062122858).

Almost surely, 2^31233320230 is an apocalyptic number.

31233320230 is an abundant number, since it is smaller than the sum of its proper divisors (34754611226).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31233320230 is a wasteful number, since it uses less digits than its factorization.

31233320230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12059248.

The product of its (nonzero) digits is 1944, while the sum is 22.

Adding to 31233320230 its reverse (3202333213), we get a palindrome (34435653443).

The spelling of 31233320230 in words is "thirty-one billion, two hundred thirty-three million, three hundred twenty thousand, two hundred thirty".