12001433240 has 16 divisors (see below), whose sum is σ = 27003224880. Its totient is φ = 4800573280.

The previous prime is 12001433233. The next prime is 12001433243. The reversal of 12001433240 is 4233410021.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001433243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150017876 + ... + 150017955.

It is an arithmetic number, because the mean of its divisors is an integer number (1687701555).

Almost surely, 2^12001433240 is an apocalyptic number.

12001433240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12001433240 is an abundant number, since it is smaller than the sum of its proper divisors (15001791640).

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

12001433240 is a wasteful number, since it uses less digits than its factorization.

12001433240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300035842 (or 300035838 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 12001433240 its reverse (4233410021), we get a palindrome (16234843261).

The spelling of 12001433240 in words is "twelve billion, one million, four hundred thirty-three thousand, two hundred forty".