40304103121 has 4 divisors (see below), whose sum is σ = 40339060132. Its totient is φ = 40269146112.

The previous prime is 40304103113. The next prime is 40304103139. The reversal of 40304103121 is 12130140304.

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

It can be written as a sum of positive squares in 2 ways, for example, as 29640442896 + 10663660225 = 172164^2 + 103265^2 .

It is a cyclic number.

It is not a de Polignac number, because 40304103121 - 2³ = 40304103113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40304103221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17476776 + ... + 17479081.

It is an arithmetic number, because the mean of its divisors is an integer number (10084765033).

Almost surely, 2^40304103121 is an apocalyptic number.

It is an amenable number.

40304103121 is a deficient number, since it is larger than the sum of its proper divisors (34957011).

40304103121 is a wasteful number, since it uses less digits than its factorization.

40304103121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34957010.

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

Adding to 40304103121 its reverse (12130140304), we get a palindrome (52434243425).

The spelling of 40304103121 in words is "forty billion, three hundred four million, one hundred three thousand, one hundred twenty-one".