30203134442 has 16 divisors (see below), whose sum is σ = 48792844800. Its totient is φ = 13939003632.

The previous prime is 30203134441. The next prime is 30203134459. The reversal of 30203134442 is 24443130203.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (30203134441) 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 in 7 ways as a sum of consecutive naturals, for example, 534683 + ... + 588465.

It is an arithmetic number, because the mean of its divisors is an integer number (3049552800).

Almost surely, 2^30203134442 is an apocalyptic number.

30203134442 is a deficient number, since it is larger than the sum of its proper divisors (18589710358).

30203134442 is a wasteful number, since it uses less digits than its factorization.

30203134442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75397.

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 30203134442 its reverse (24443130203), we get a palindrome (54646264645).

The spelling of 30203134442 in words is "thirty billion, two hundred three million, one hundred thirty-four thousand, four hundred forty-two".