12003534534 has 32 divisors (see below), whose sum is σ = 24307242624. Its totient is φ = 3951192960.

The previous prime is 12003534523. The next prime is 12003534547. The reversal of 12003534534 is 43543530021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1550397 + ... + 1558119.

It is an arithmetic number, because the mean of its divisors is an integer number (759601332).

Almost surely, 2^12003534534 is an apocalyptic number.

12003534534 is an abundant number, since it is smaller than the sum of its proper divisors (12303708090).

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

12003534534 is a wasteful number, since it uses less digits than its factorization.

12003534534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10932.

The product of its (nonzero) digits is 21600, while the sum is 30.

The spelling of 12003534534 in words is "twelve billion, three million, five hundred thirty-four thousand, five hundred thirty-four".