23221423040 has 56 divisors (see below), whose sum is σ = 58206345360. Its totient is φ = 8799694848.

The previous prime is 23221423031. The next prime is 23221423051. The reversal of 23221423040 is 4032412232.

It is a junction number, because it is equal to n+sod(n) for n = 23221422997 and 23221423015.

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, 1903577 + ... + 1915736.

Almost surely, 2^23221423040 is an apocalyptic number.

23221423040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23221423040 is an abundant number, since it is smaller than the sum of its proper divisors (34984922320).

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

23221423040 is a wasteful number, since it uses less digits than its factorization.

23221423040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3819349 (or 3819339 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 23221423040 its reverse (4032412232), we get a palindrome (27253835272).

The spelling of 23221423040 in words is "twenty-three billion, two hundred twenty-one million, four hundred twenty-three thousand, forty".