23212315620 has 288 divisors, whose sum is σ = 77345049600. Its totient is φ = 5633881344.

The previous prime is 23212315601. The next prime is 23212315663. The reversal of 23212315620 is 2651321232.

It is a happy number.

23212315620 is a `hidden beast` number, since 2 + 3 + 2 + 1 + 2 + 31 + 5 + 620 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 31240969 + ... + 31241711.

It is an arithmetic number, because the mean of its divisors is an integer number (268559200).

Almost surely, 2^23212315620 is an apocalyptic number.

23212315620 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 23212315620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38672524800).

23212315620 is an abundant number, since it is smaller than the sum of its proper divisors (54132733980).

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

23212315620 is a wasteful number, since it uses less digits than its factorization.

23212315620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876 (or 845 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 23212315620 its reverse (2651321232), we get a palindrome (25863636852).

The spelling of 23212315620 in words is "twenty-three billion, two hundred twelve million, three hundred fifteen thousand, six hundred twenty".