23521422330 has 160 divisors (see below), whose sum is σ = 73028583936. Its totient is φ = 5320774656.

The previous prime is 23521422293. The next prime is 23521422347. The reversal of 23521422330 is 3322412532.

23521422330 is a `hidden beast` number, since 235 + 2 + 1 + 422 + 3 + 3 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23521422294 and 23521422303.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 528607 + ... + 571373.

Almost surely, 2^23521422330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23521422330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36514291968).

23521422330 is an abundant number, since it is smaller than the sum of its proper divisors (49507161606).

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

23521422330 is a wasteful number, since it uses less digits than its factorization.

23521422330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42890 (or 42881 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

Adding to 23521422330 its reverse (3322412532), we get a palindrome (26843834862).

The spelling of 23521422330 in words is "twenty-three billion, five hundred twenty-one million, four hundred twenty-two thousand, three hundred thirty".