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23120202131300 = 2252231202021313
BaseRepresentation
bin1010100000111000101110…
…11011110110011101100100
310000212021021122020201121202
411100130113123312131210
511012300133221200200
6121101135122302032
74604244106363331
oct520342733663544
9100767248221552
1023120202131300
11740424a3a709a
122714a24ab7918
13cb92c1b50401
1459d049275988
152a16221ab1d5
hex1507176f6764

23120202131300 has 18 divisors (see below), whose sum is σ = 50170838625138. Its totient is φ = 9248080852480.

The previous prime is 23120202131251. The next prime is 23120202131303. The reversal of 23120202131300 is 313120202132.

It can be written as a sum of positive squares in 3 ways, for example, as 6313088407396 + 16807113723904 = 2512586^2 + 4099648^2 .

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

It is not an unprimeable number, because it can be changed into a prime (23120202131303) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 115601010557 + ... + 115601010756.

Almost surely, 223120202131300 is an apocalyptic number.

23120202131300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23120202131300 is an abundant number, since it is smaller than the sum of its proper divisors (27050636493838).

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

23120202131300 is a wasteful number, since it uses less digits than its factorization.

23120202131300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231202021327 (or 231202021320 counting only the distinct ones).

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

Adding to 23120202131300 its reverse (313120202132), we get a palindrome (23433322333432).

The spelling of 23120202131300 in words is "twenty-three trillion, one hundred twenty billion, two hundred two million, one hundred thirty-one thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 231202021313 462404042626 924808085252 1156010106565 2312020213130 4624040426260 5780050532825 11560101065650 23120202131300