40310043121 has 4 divisors (see below), whose sum is σ = 40378714992. Its totient is φ = 40241371252.

The previous prime is 40310043107. The next prime is 40310043157. The reversal of 40310043121 is 12134001304.

40310043121 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40310043121 - 2⁵ = 40310043089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40310049121) 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, 34335055 + ... + 34336228.

It is an arithmetic number, because the mean of its divisors is an integer number (10094678748).

Almost surely, 2^40310043121 is an apocalyptic number.

It is an amenable number.

40310043121 is a deficient number, since it is larger than the sum of its proper divisors (68671871).

40310043121 is an equidigital number, since it uses as much as digits as its factorization.

40310043121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68671870.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 40310043121 its reverse (12134001304), we get a palindrome (52444044425).

The spelling of 40310043121 in words is "forty billion, three hundred ten million, forty-three thousand, one hundred twenty-one".