23422120420 has 72 divisors (see below), whose sum is σ = 52643763648. Its totient is φ = 8750548800.

The previous prime is 23422120409. The next prime is 23422120433. The reversal of 23422120420 is 2402122432.

It is a junction number, because it is equal to n+sod(n) for n = 23422120391 and 23422120400.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 489775 + ... + 535465.

It is an arithmetic number, because the mean of its divisors is an integer number (731163384).

Almost surely, 2^23422120420 is an apocalyptic number.

23422120420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23422120420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26321881824).

23422120420 is an abundant number, since it is smaller than the sum of its proper divisors (29221643228).

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

23422120420 is a wasteful number, since it uses less digits than its factorization.

23422120420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45809 (or 45788 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 23422120420 its reverse (2402122432), we get a palindrome (25824242852).

The spelling of 23422120420 in words is "twenty-three billion, four hundred twenty-two million, one hundred twenty thousand, four hundred twenty".