30002123212 has 24 divisors (see below), whose sum is σ = 53733380400. Its totient is φ = 14653790976.

The previous prime is 30002123201. The next prime is 30002123213. The reversal of 30002123212 is 21232120003.

It is not an unprimeable number, because it can be changed into a prime (30002123213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 478137 + ... + 537232.

It is an arithmetic number, because the mean of its divisors is an integer number (2238890850).

Almost surely, 2^30002123212 is an apocalyptic number.

It is an amenable number.

30002123212 is a deficient number, since it is larger than the sum of its proper divisors (23731257188).

30002123212 is a wasteful number, since it uses less digits than its factorization.

30002123212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015545 (or 1015543 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 30002123212 its reverse (21232120003), we get a palindrome (51234243215).

It can be divided in two parts, 3000 and 2123212, that added together give a palindrome (2126212).

The spelling of 30002123212 in words is "thirty billion, two million, one hundred twenty-three thousand, two hundred twelve".