40121434323240 has 64 divisors (see below), whose sum is σ = 121085047359360. Its totient is φ = 10634982984960.

The previous prime is 40121434323203. The next prime is 40121434323259. The reversal of 40121434323240 is 4232343412104.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1001013751 + ... + 1001053830.

It is an arithmetic number, because the mean of its divisors is an integer number (1891953864990).

Almost surely, 2^{40121434323240} is an apocalyptic number.

40121434323240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40121434323240 is an abundant number, since it is smaller than the sum of its proper divisors (80963613036120).

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

40121434323240 is a wasteful number, since it uses less digits than its factorization.

40121434323240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2002067762 (or 2002067758 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 33.

Adding to 40121434323240 its reverse (4232343412104), we get a palindrome (44353777735344).

The spelling of 40121434323240 in words is "forty trillion, one hundred twenty-one billion, four hundred thirty-four million, three hundred twenty-three thousand, two hundred forty".