20023781104 has 40 divisors (see below), whose sum is σ = 41787722240. Its totient is φ = 9264362688.

The previous prime is 20023781069. The next prime is 20023781131. The reversal of 20023781104 is 40118732002.

It is a congruent number.

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, 752832 + ... + 778975.

It is an arithmetic number, because the mean of its divisors is an integer number (1044693056).

Almost surely, 2^20023781104 is an apocalyptic number.

It is an amenable number.

20023781104 is an abundant number, since it is smaller than the sum of its proper divisors (21763941136).

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

20023781104 is a wasteful number, since it uses less digits than its factorization.

20023781104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1531877 (or 1531871 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The spelling of 20023781104 in words is "twenty billion, twenty-three million, seven hundred eighty-one thousand, one hundred four".