12134032240 has 40 divisors (see below), whose sum is σ = 30776320368. Its totient is φ = 4412375040.

The previous prime is 12134032231. The next prime is 12134032241. The reversal of 12134032240 is 4223043121.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12134032241) 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, 6893457 + ... + 6895216.

Almost surely, 2^12134032240 is an apocalyptic number.

12134032240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12134032240 is an abundant number, since it is smaller than the sum of its proper divisors (18642288128).

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

12134032240 is a wasteful number, since it uses less digits than its factorization.

12134032240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13788697 (or 13788691 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 12134032240 its reverse (4223043121), we get a palindrome (16357075361).

The spelling of 12134032240 in words is "twelve billion, one hundred thirty-four million, thirty-two thousand, two hundred forty".