20003121403140 has 24 divisors (see below), whose sum is σ = 56008739928960. Its totient is φ = 5334165707488.

The previous prime is 20003121403103. The next prime is 20003121403159. The reversal of 20003121403140 is 4130412130002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166692678300 + ... + 166692678419.

It is an arithmetic number, because the mean of its divisors is an integer number (2333697497040).

Almost surely, 2^{20003121403140} is an apocalyptic number.

20003121403140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20003121403140 is an abundant number, since it is smaller than the sum of its proper divisors (36005618525820).

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

20003121403140 is a wasteful number, since it uses less digits than its factorization.

20003121403140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333385356731 (or 333385356729 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 20003121403140 its reverse (4130412130002), we get a palindrome (24133533533142).

The spelling of 20003121403140 in words is "twenty trillion, three billion, one hundred twenty-one million, four hundred three thousand, one hundred forty".