30195131252 has 144 divisors (see below), whose sum is σ = 64731715776. Its totient is φ = 12149222400.

The previous prime is 30195131251. The next prime is 30195131257. The reversal of 30195131252 is 25213159103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30195131251) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 89599628 + ... + 89599964.

It is an arithmetic number, because the mean of its divisors is an integer number (449525804).

Almost surely, 2^30195131252 is an apocalyptic number.

It is an amenable number.

30195131252 is an abundant number, since it is smaller than the sum of its proper divisors (34536584524).

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

30195131252 is a wasteful number, since it uses less digits than its factorization.

30195131252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590 (or 557 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 32.

The spelling of 30195131252 in words is "thirty billion, one hundred ninety-five million, one hundred thirty-one thousand, two hundred fifty-two".