23311422420 has 192 divisors, whose sum is σ = 76838823936. Its totient is φ = 5205957120.

The previous prime is 23311422383. The next prime is 23311422467. The reversal of 23311422420 is 2422411332.

It is a happy number.

It is a congruent number.

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, 4690777 + ... + 4695743.

It is an arithmetic number, because the mean of its divisors is an integer number (400202208).

Almost surely, 2^23311422420 is an apocalyptic number.

23311422420 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 23311422420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38419411968).

23311422420 is an abundant number, since it is smaller than the sum of its proper divisors (53527401516).

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

23311422420 is a wasteful number, since it uses less digits than its factorization.

23311422420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5550 (or 5548 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 23311422420 its reverse (2422411332), we get a palindrome (25733833752).

The spelling of 23311422420 in words is "twenty-three billion, three hundred eleven million, four hundred twenty-two thousand, four hundred twenty".