23120033121020 has 96 divisors (see below), whose sum is σ = 53504396854272. Its totient is φ = 8321852000000.

The previous prime is 23120033121011. The next prime is 23120033121067. The reversal of 23120033121020 is 2012133002132.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 23120033120983 and 23120033121001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 85434125 + ... + 85704315.

It is an arithmetic number, because the mean of its divisors is an integer number (557337467232).

Almost surely, 2^{23120033121020} is an apocalyptic number.

23120033121020 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 23120033121020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26752198427136).

23120033121020 is an abundant number, since it is smaller than the sum of its proper divisors (30384363733252).

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

23120033121020 is a wasteful number, since it uses less digits than its factorization.

23120033121020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274163 (or 274161 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 23120033121020 its reverse (2012133002132), we get a palindrome (25132166123152).

The spelling of 23120033121020 in words is "twenty-three trillion, one hundred twenty billion, thirty-three million, one hundred twenty-one thousand, twenty".