30142242431020 has 48 divisors (see below), whose sum is σ = 64475952399936. Its totient is φ = 11833517664000.

The previous prime is 30142242430981. The next prime is 30142242431029. The reversal of 30142242431020 is 2013424224103.

It is a self number, because there is not a number n which added to its sum of digits gives 30142242431020.

It is not an unprimeable number, because it can be changed into a prime (30142242431029) 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, 26234496 + ... + 27359335.

It is an arithmetic number, because the mean of its divisors is an integer number (1343249008332).

Almost surely, 2^{30142242431020} is an apocalyptic number.

It is an amenable number.

30142242431020 is an abundant number, since it is smaller than the sum of its proper divisors (34333709968916).

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

30142242431020 is a wasteful number, since it uses less digits than its factorization.

30142242431020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53594362 (or 53594360 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 30142242431020 its reverse (2013424224103), we get a palindrome (32155666655123).

The spelling of 30142242431020 in words is "thirty trillion, one hundred forty-two billion, two hundred forty-two million, four hundred thirty-one thousand, twenty".