12030511512 has 32 divisors (see below), whose sum is σ = 30278142000. Its totient is φ = 3983255424.

The previous prime is 12030511511. The next prime is 12030511531. The reversal of 12030511512 is 21511503021.

It is a super-2 number, since 2×12030511512² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12030511511) 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, 1678543 + ... + 1685694.

Almost surely, 2^12030511512 is an apocalyptic number.

12030511512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12030511512 is an abundant number, since it is smaller than the sum of its proper divisors (18247630488).

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

12030511512 is a wasteful number, since it uses less digits than its factorization.

12030511512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3364395 (or 3364391 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 21.

The spelling of 12030511512 in words is "twelve billion, thirty million, five hundred eleven thousand, five hundred twelve".