30243220144 has 20 divisors (see below), whose sum is σ = 58599046296. Its totient is φ = 15120885632.

The previous prime is 30243220129. The next prime is 30243220153. The reversal of 30243220144 is 44102234203.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 493167 + ... + 551089.

Almost surely, 2^30243220144 is an apocalyptic number.

It is an amenable number.

30243220144 is a deficient number, since it is larger than the sum of its proper divisors (28355826152).

30243220144 is a wasteful number, since it uses less digits than its factorization.

30243220144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90564 (or 90558 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 30243220144 its reverse (44102234203), we get a palindrome (74345454347).

The spelling of 30243220144 in words is "thirty billion, two hundred forty-three million, two hundred twenty thousand, one hundred forty-four".