30323023212 has 48 divisors (see below), whose sum is σ = 73561283712. Its totient is φ = 9713953920.

The previous prime is 30323023183. The next prime is 30323023217. The reversal of 30323023212 is 21232032303.

It is not an unprimeable number, because it can be changed into a prime (30323023217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 426978 + ... + 492905.

It is an arithmetic number, because the mean of its divisors is an integer number (1532526744).

Almost surely, 2^30323023212 is an apocalyptic number.

It is an amenable number.

30323023212 is an abundant number, since it is smaller than the sum of its proper divisors (43238260500).

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

30323023212 is a wasteful number, since it uses less digits than its factorization.

30323023212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919998 (or 919996 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 30323023212 its reverse (21232032303), we get a palindrome (51555055515).

Subtracting from 30323023212 its reverse (21232032303), we obtain a palindrome (9090990909).

The spelling of 30323023212 in words is "thirty billion, three hundred twenty-three million, twenty-three thousand, two hundred twelve".