40240121302140 has 96 divisors (see below), whose sum is σ = 115095538656000. Its totient is φ = 10502334713856.

The previous prime is 40240121302079. The next prime is 40240121302159. The reversal of 40240121302140 is 4120312104204.

It is a self number, because there is not a number n which added to its sum of digits gives 40240121302140.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 37225765 + ... + 38291484.

It is an arithmetic number, because the mean of its divisors is an integer number (1198911861000).

Almost surely, 2^{40240121302140} is an apocalyptic number.

It is an amenable number.

40240121302140 is an abundant number, since it is smaller than the sum of its proper divisors (74855417353860).

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

40240121302140 is a wasteful number, since it uses less digits than its factorization.

40240121302140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75517451 (or 75517449 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 40240121302140 its reverse (4120312104204), we get a palindrome (44360433406344).

The spelling of 40240121302140 in words is "forty trillion, two hundred forty billion, one hundred twenty-one million, three hundred two thousand, one hundred forty".