30123040650 has 48 divisors (see below), whose sum is σ = 74861280000. Its totient is φ = 8016021760.

The previous prime is 30123040613. The next prime is 30123040693. The reversal of 30123040650 is 5604032103.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 30123040650.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 137775 + ... + 281474.

It is an arithmetic number, because the mean of its divisors is an integer number (1559610000).

Almost surely, 2^30123040650 is an apocalyptic number.

30123040650 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30123040650 is an abundant number, since it is smaller than the sum of its proper divisors (44738239350).

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

30123040650 is a wasteful number, since it uses less digits than its factorization.

30123040650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419743 (or 419738 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

Adding to 30123040650 its reverse (5604032103), we get a palindrome (35727072753).

The spelling of 30123040650 in words is "thirty billion, one hundred twenty-three million, forty thousand, six hundred fifty".