30205145012 has 48 divisors (see below), whose sum is σ = 64027635840. Its totient is φ = 12171436032.

The previous prime is 30205145011. The next prime is 30205145017. The reversal of 30205145012 is 21054150203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30205145011) 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, 453908 + ... + 516180.

It is an arithmetic number, because the mean of its divisors is an integer number (1333909080).

Almost surely, 2^30205145012 is an apocalyptic number.

It is an amenable number.

30205145012 is an abundant number, since it is smaller than the sum of its proper divisors (33822490828).

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

30205145012 is a wasteful number, since it uses less digits than its factorization.

30205145012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63320 (or 63318 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

Adding to 30205145012 its reverse (21054150203), we get a palindrome (51259295215).

The spelling of 30205145012 in words is "thirty billion, two hundred five million, one hundred forty-five thousand, twelve".