43100120142 has 64 divisors (see below), whose sum is σ = 97658084160. Its totient is φ = 14085107712.

The previous prime is 43100120123. The next prime is 43100120143. The reversal of 43100120142 is 24102100134.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43100120143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4439838 + ... + 4449534.

It is an arithmetic number, because the mean of its divisors is an integer number (1525907565).

Almost surely, 2^43100120142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43100120142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48829042080).

43100120142 is an abundant number, since it is smaller than the sum of its proper divisors (54557964018).

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

43100120142 is a wasteful number, since it uses less digits than its factorization.

43100120142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11314 (or 11308 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 43100120142 its reverse (24102100134), we get a palindrome (67202220276).

The spelling of 43100120142 in words is "forty-three billion, one hundred million, one hundred twenty thousand, one hundred forty-two".