30243212136 has 64 divisors (see below), whose sum is σ = 86905800000. Its totient is φ = 9733445568.

The previous prime is 30243212119. The next prime is 30243212137. The reversal of 30243212136 is 63121234203.

30243212136 is a `hidden beast` number, since 302 + 4 + 321 + 2 + 1 + 36 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (30243212137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2407786 + ... + 2420313.

It is an arithmetic number, because the mean of its divisors is an integer number (1357903125).

Almost surely, 2^30243212136 is an apocalyptic number.

30243212136 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

30243212136 is an abundant number, since it is smaller than the sum of its proper divisors (56662587864).

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

30243212136 is a wasteful number, since it uses less digits than its factorization.

30243212136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4828143 (or 4828133 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 30243212136 its reverse (63121234203), we get a palindrome (93364446339).

The spelling of 30243212136 in words is "thirty billion, two hundred forty-three million, two hundred twelve thousand, one hundred thirty-six".