43135220142120 has 32 divisors (see below), whose sum is σ = 129405660426720. Its totient is φ = 11502725371200.

The previous prime is 43135220142103. The next prime is 43135220142127. The reversal of 43135220142120 is 2124102253134.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (43135220142127) 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, 179730083806 + ... + 179730084045.

It is an arithmetic number, because the mean of its divisors is an integer number (4043926888335).

Almost surely, 2^{43135220142120} is an apocalyptic number.

43135220142120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43135220142120 is an abundant number, since it is smaller than the sum of its proper divisors (86270440284600).

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

43135220142120 is a wasteful number, since it uses less digits than its factorization.

43135220142120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359460167865 (or 359460167861 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 43135220142120 its reverse (2124102253134), we get a palindrome (45259322395254).

The spelling of 43135220142120 in words is "forty-three trillion, one hundred thirty-five billion, two hundred twenty million, one hundred forty-two thousand, one hundred twenty".