43123241040 has 80 divisors (see below), whose sum is σ = 145834969536. Its totient is φ = 10454118400.

The previous prime is 43123241003. The next prime is 43123241089. The reversal of 43123241040 is 4014232134.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×43123241040² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 43123241040.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8164641 + ... + 8169920.

Almost surely, 2^43123241040 is an apocalyptic number.

43123241040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43123241040 is an abundant number, since it is smaller than the sum of its proper divisors (102711728496).

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

43123241040 is a wasteful number, since it uses less digits than its factorization.

43123241040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16334588 (or 16334582 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 43123241040 its reverse (4014232134), we get a palindrome (47137473174).

The spelling of 43123241040 in words is "forty-three billion, one hundred twenty-three million, two hundred forty-one thousand, forty".