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23201120120 = 235580028003
BaseRepresentation
bin10101100110111001…
…001111111101111000
32012212221000000112012
4111212321033331320
5340003441320440
614354120305052
71450642160423
oct254671177570
965787000465
1023201120120
119926477a42
1245b6012188
132259949259
1411a14c29ba
1590bcdae65
hex566e4ff78

23201120120 has 16 divisors (see below), whose sum is σ = 52202520360. Its totient is φ = 9280448032.

The previous prime is 23201120101. The next prime is 23201120123. The reversal of 23201120120 is 2102110232.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 23201120095 and 23201120104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23201120123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 290013962 + ... + 290014041.

Almost surely, 223201120120 is an apocalyptic number.

23201120120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23201120120 is an abundant number, since it is smaller than the sum of its proper divisors (29001400240).

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

23201120120 is a wasteful number, since it uses less digits than its factorization.

23201120120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580028014 (or 580028010 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 23201120120 its reverse (2102110232), we get a palindrome (25303230352).

The spelling of 23201120120 in words is "twenty-three billion, two hundred one million, one hundred twenty thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 580028003 1160056006 2320112012 2900140015 4640224024 5800280030 11600560060 23201120120