40121034020 has 12 divisors (see below), whose sum is σ = 84254171484. Its totient is φ = 16048413600.

The previous prime is 40121034017. The next prime is 40121034043. The reversal of 40121034020 is 2043012104.

It can be written as a sum of positive squares in 2 ways, for example, as 9707766784 + 30413267236 = 98528^2 + 174394^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 40121034020.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1003025831 + ... + 1003025870.

It is an arithmetic number, because the mean of its divisors is an integer number (7021180957).

Almost surely, 2^40121034020 is an apocalyptic number.

It is an amenable number.

40121034020 is an abundant number, since it is smaller than the sum of its proper divisors (44133137464).

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

40121034020 is a wasteful number, since it uses less digits than its factorization.

40121034020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2006051710 (or 2006051708 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 40121034020 its reverse (2043012104), we get a palindrome (42164046124).

The spelling of 40121034020 in words is "forty billion, one hundred twenty-one million, thirty-four thousand, twenty".