30311331230 has 32 divisors (see below), whose sum is σ = 55801462464. Its totient is φ = 11850482176.

The previous prime is 30311331221. The next prime is 30311331233. The reversal of 30311331230 is 3213311303.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30311331233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30662 + ... + 248118.

It is an arithmetic number, because the mean of its divisors is an integer number (1743795702).

Almost surely, 2^30311331230 is an apocalyptic number.

30311331230 is a deficient number, since it is larger than the sum of its proper divisors (25490131234).

30311331230 is a wasteful number, since it uses less digits than its factorization.

30311331230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217780.

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 30311331230 its reverse (3213311303), we get a palindrome (33524642533).

The spelling of 30311331230 in words is "thirty billion, three hundred eleven million, three hundred thirty-one thousand, two hundred thirty".