43111342420 has 12 divisors (see below), whose sum is σ = 90533819124. Its totient is φ = 17244536960.

The previous prime is 43111342411. The next prime is 43111342433. The reversal of 43111342420 is 2424311134.

It can be written as a sum of positive squares in 2 ways, for example, as 5759595664 + 37351746756 = 75892^2 + 193266^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1077783541 + ... + 1077783580.

It is an arithmetic number, because the mean of its divisors is an integer number (7544484927).

Almost surely, 2^43111342420 is an apocalyptic number.

It is an amenable number.

43111342420 is an abundant number, since it is smaller than the sum of its proper divisors (47422476704).

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

43111342420 is a wasteful number, since it uses less digits than its factorization.

43111342420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2155567130 (or 2155567128 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 43111342420 its reverse (2424311134), we get a palindrome (45535653554).

The spelling of 43111342420 in words is "forty-three billion, one hundred eleven million, three hundred forty-two thousand, four hundred twenty".