20040121033380 has 192 divisors, whose sum is σ = 71255954810880. Its totient is φ = 4580458236288.

The previous prime is 20040121033379. The next prime is 20040121033393. The reversal of 20040121033380 is 8333012104002.

20040121033380 is a `hidden beast` number, since 2 + 0 + 0 + 40 + 1 + 210 + 33 + 380 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 169538179 + ... + 169656341.

It is an arithmetic number, because the mean of its divisors is an integer number (371124764640).

Almost surely, 2^{20040121033380} is an apocalyptic number.

20040121033380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20040121033380 is an abundant number, since it is smaller than the sum of its proper divisors (51215833777500).

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

20040121033380 is a wasteful number, since it uses less digits than its factorization.

20040121033380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163055 (or 163047 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 20040121033380 its reverse (8333012104002), we get a palindrome (28373133137382).

The spelling of 20040121033380 in words is "twenty trillion, forty billion, one hundred twenty-one million, thirty-three thousand, three hundred eighty".