23122321002 has 96 divisors (see below), whose sum is σ = 55217313216. Its totient is φ = 6992425440.

The previous prime is 23122320983. The next prime is 23122321031. The reversal of 23122321002 is 20012322132.

23122321002 is a `hidden beast` number, since 231 + 223 + 210 + 0 + 2 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21154368 + ... + 21155460.

It is an arithmetic number, because the mean of its divisors is an integer number (575180346).

Almost surely, 2^23122321002 is an apocalyptic number.

23122321002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 23122321002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27608656608).

23122321002 is an abundant number, since it is smaller than the sum of its proper divisors (32094992214).

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

23122321002 is a wasteful number, since it uses less digits than its factorization.

23122321002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2017 (or 1992 counting only the distinct ones).

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

Adding to 23122321002 its reverse (20012322132), we get a palindrome (43134643134).

The spelling of 23122321002 in words is "twenty-three billion, one hundred twenty-two million, three hundred twenty-one thousand, two".