23212012032 has 240 divisors, whose sum is σ = 75606410880. Its totient is φ = 6790963200.

The previous prime is 23212011997. The next prime is 23212012081. The reversal of 23212012032 is 23021021232.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 23212011996 and 23212012014.

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, 1462057 + ... + 1477847.

It is an arithmetic number, because the mean of its divisors is an integer number (315026712).

Almost surely, 2^23212012032 is an apocalyptic number.

23212012032 is a gapful number since it is divisible by the number (22) 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 23212012032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37803205440).

23212012032 is an abundant number, since it is smaller than the sum of its proper divisors (52394398848).

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

23212012032 is a wasteful number, since it uses less digits than its factorization.

23212012032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15855 (or 15836 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 23212012032 its reverse (23021021232), we get a palindrome (46233033264).

The spelling of 23212012032 in words is "twenty-three billion, two hundred twelve million, twelve thousand, thirty-two".