40120125043 has 4 divisors (see below), whose sum is σ = 40120678360. Its totient is φ = 40119571728.

The previous prime is 40120125041. The next prime is 40120125161. The reversal of 40120125043 is 34052102104.

40120125043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40120125043 - 2¹ = 40120125041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40120125041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147930 + ... + 319567.

It is an arithmetic number, because the mean of its divisors is an integer number (10030169590).

Almost surely, 2^40120125043 is an apocalyptic number.

40120125043 is a deficient number, since it is larger than the sum of its proper divisors (553317).

40120125043 is an equidigital number, since it uses as much as digits as its factorization.

40120125043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553316.

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 40120125043 its reverse (34052102104), we get a palindrome (74172227147).

The spelling of 40120125043 in words is "forty billion, one hundred twenty million, one hundred twenty-five thousand, forty-three".