23120220030000 has 200 divisors, whose sum is σ = 74737045527408. Its totient is φ = 6156974976000.

The previous prime is 23120220029981. The next prime is 23120220030091. The reversal of 23120220030000 is 3002202132.

It is a tau number, because it is divible by the number of its divisors (200).

It is a super-2 number, since 2×23120220030000² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 21464302 + ... + 22515698.

Almost surely, 2^{23120220030000} is an apocalyptic number.

23120220030000 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 23120220030000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37368522763704).

23120220030000 is an abundant number, since it is smaller than the sum of its proper divisors (51616825497408).

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

23120220030000 is a wasteful number, since it uses less digits than its factorization.

23120220030000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1052161 (or 1052140 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 23120220030000 its reverse (3002202132), we get a palindrome (23123222232132).

The spelling of 23120220030000 in words is "twenty-three trillion, one hundred twenty billion, two hundred twenty million, thirty thousand".