40311112121 has 8 divisors (see below), whose sum is σ = 47658457920. Its totient is φ = 33360920208.

The previous prime is 40311112117. The next prime is 40311112123. The reversal of 40311112121 is 12121111304.

40311112121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40311112121 - 2² = 40311112117 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40311112121.

It is not an unprimeable number, because it can be changed into a prime (40311112123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99288251 + ... + 99288656.

It is an arithmetic number, because the mean of its divisors is an integer number (5957307240).

Almost surely, 2^40311112121 is an apocalyptic number.

It is an amenable number.

40311112121 is a deficient number, since it is larger than the sum of its proper divisors (7347345799).

40311112121 is a wasteful number, since it uses less digits than its factorization.

40311112121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198576943.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 40311112121 its reverse (12121111304), we get a palindrome (52432223425).

The spelling of 40311112121 in words is "forty billion, three hundred eleven million, one hundred twelve thousand, one hundred twenty-one".