30311243442 has 40 divisors (see below), whose sum is σ = 67996532736. Its totient is φ = 10092309048.

The previous prime is 30311243437. The next prime is 30311243453. The reversal of 30311243442 is 24434211303.

30311243442 is a `hidden beast` number, since 3 + 0 + 311 + 2 + 4 + 344 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 38223 + ... + 249165.

Almost surely, 2^30311243442 is an apocalyptic number.

30311243442 is an abundant number, since it is smaller than the sum of its proper divisors (37685289294).

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

30311243442 is a wasteful number, since it uses less digits than its factorization.

30311243442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211844 (or 211835 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 30311243442 its reverse (24434211303), we get a palindrome (54745454745).

The spelling of 30311243442 in words is "thirty billion, three hundred eleven million, two hundred forty-three thousand, four hundred forty-two".