20423101120 has 56 divisors (see below), whose sum is σ = 49763531664. Its totient is φ = 7979252736.

The previous prime is 20423101087. The next prime is 20423101177. The reversal of 20423101120 is 2110132402.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 20423101094 and 20423101103.

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, 728359 + ... + 755878.

It is an arithmetic number, because the mean of its divisors is an integer number (888634494).

Almost surely, 2^20423101120 is an apocalyptic number.

20423101120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20423101120 is an abundant number, since it is smaller than the sum of its proper divisors (29340430544).

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

20423101120 is a wasteful number, since it uses less digits than its factorization.

20423101120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1484297 (or 1484287 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 20423101120 its reverse (2110132402), we get a palindrome (22533233522).

The spelling of 20423101120 in words is "twenty billion, four hundred twenty-three million, one hundred one thousand, one hundred twenty".