30311233112 has 8 divisors (see below), whose sum is σ = 56833562100. Its totient is φ = 15155616552.

The previous prime is 30311233111. The next prime is 30311233163. The reversal of 30311233112 is 21133211303.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30311233111) by changing a digit.

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 as a sum of consecutive naturals, namely, 1894452062 + ... + 1894452077.

Almost surely, 2^30311233112 is an apocalyptic number.

It is an amenable number.

30311233112 is a deficient number, since it is larger than the sum of its proper divisors (26522328988).

30311233112 is a wasteful number, since it uses less digits than its factorization.

30311233112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3788904145 (or 3788904141 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 30311233112 its reverse (21133211303), we get a palindrome (51444444415).

The spelling of 30311233112 in words is "thirty billion, three hundred eleven million, two hundred thirty-three thousand, one hundred twelve".