43123044004000 has 48 divisors (see below), whose sum is σ = 105953319127656. Its totient is φ = 17249217600000.

The previous prime is 43123044003997. The next prime is 43123044004021. The reversal of 43123044004000 is 40044032134.

It can be written as a sum of positive squares in 4 ways, for example, as 24387755052816 + 18735288951184 = 4938396^2 + 4328428^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5390376501 + ... + 5390384500.

Almost surely, 2^{43123044004000} is an apocalyptic number.

43123044004000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43123044004000 is an abundant number, since it is smaller than the sum of its proper divisors (62830275123656).

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

43123044004000 is a wasteful number, since it uses less digits than its factorization.

43123044004000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10780761026 (or 10780761008 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 43123044004000 its reverse (40044032134), we get a palindrome (43163088036134).

The spelling of 43123044004000 in words is "forty-three trillion, one hundred twenty-three billion, forty-four million, four thousand".