30124213257845 has 48 divisors (see below), whose sum is σ = 44173737244800. Its totient is φ = 19625882322816.

The previous prime is 30124213257829. The next prime is 30124213257863. The reversal of 30124213257845 is 54875231242103.

It is not a de Polignac number, because 30124213257845 - 2⁴ = 30124213257829 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30124213257845.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17099687 + ... + 18778916.

It is an arithmetic number, because the mean of its divisors is an integer number (920286192600).

Almost surely, 2^{30124213257845} is an apocalyptic number.

30124213257845 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30124213257845 is a deficient number, since it is larger than the sum of its proper divisors (14049523986955).

30124213257845 is a wasteful number, since it uses less digits than its factorization.

30124213257845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35878794 (or 35878787 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 47.

Adding to 30124213257845 its reverse (54875231242103), we get a palindrome (84999444499948).

The spelling of 30124213257845 in words is "thirty trillion, one hundred twenty-four billion, two hundred thirteen million, two hundred fifty-seven thousand, eight hundred forty-five".