30213212124 has 24 divisors (see below), whose sum is σ = 74644406928. Its totient is φ = 9478654720.

The previous prime is 30213212111. The next prime is 30213212131. The reversal of 30213212124 is 42121231203.

It is a self number, because there is not a number n which added to its sum of digits gives 30213212124.

It is a congruent number.

It is an unprimeable number.

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, 74051787 + ... + 74052194.

It is an arithmetic number, because the mean of its divisors is an integer number (3110183622).

Almost surely, 2^30213212124 is an apocalyptic number.

30213212124 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

30213212124 is an abundant number, since it is smaller than the sum of its proper divisors (44431194804).

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

30213212124 is a wasteful number, since it uses less digits than its factorization.

30213212124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148104005 (or 148104003 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 30213212124 its reverse (42121231203), we get a palindrome (72334443327).

The spelling of 30213212124 in words is "thirty billion, two hundred thirteen million, two hundred twelve thousand, one hundred twenty-four".