20340112004140 has 24 divisors (see below), whose sum is σ = 42714912668400. Its totient is φ = 8135915761728.

The previous prime is 20340112004137. The next prime is 20340112004161. The reversal of 20340112004140 is 4140021104302.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6767367 + ... + 9299326.

It is an arithmetic number, because the mean of its divisors is an integer number (1779788027850).

Almost surely, 2^{20340112004140} is an apocalyptic number.

20340112004140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20340112004140 is an abundant number, since it is smaller than the sum of its proper divisors (22374800664260).

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

20340112004140 is a wasteful number, since it uses less digits than its factorization.

20340112004140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16130001 (or 16129999 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 20340112004140 its reverse (4140021104302), we get a palindrome (24480133108442).

The spelling of 20340112004140 in words is "twenty trillion, three hundred forty billion, one hundred twelve million, four thousand, one hundred forty".