30181523412 has 24 divisors (see below), whose sum is σ = 70433257216. Its totient is φ = 10059121728.

The previous prime is 30181523347. The next prime is 30181523419. The reversal of 30181523412 is 21432518103.

It is a self number, because there is not a number n which added to its sum of digits gives 30181523412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30181523419) 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, 80548 + ... + 258555.

Almost surely, 2^30181523412 is an apocalyptic number.

It is an amenable number.

30181523412 is an abundant number, since it is smaller than the sum of its proper divisors (40251733804).

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

30181523412 is a wasteful number, since it uses less digits than its factorization.

30181523412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346527 (or 346525 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The spelling of 30181523412 in words is "thirty billion, one hundred eighty-one million, five hundred twenty-three thousand, four hundred twelve".