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23202213231213 = 322578023692357
BaseRepresentation
bin1010100011010001011111…
…01011010111101001101101
310001011002222010121021001200
411101220233223113221231
511020121113041344323
6121202541041000113
74613206321260102
oct521505753275155
9101132863537050
1023202213231213
117436004541315
1227288b2323039
13cc3c61817973
145a2dc9158aa9
152a3821ed1443
hex151a2fad7a6d

23202213231213 has 6 divisors (see below), whose sum is σ = 33514308000654. Its totient is φ = 15468142154136.

The previous prime is 23202213231209. The next prime is 23202213231229. The reversal of 23202213231213 is 31213231220232.

23202213231213 is a `hidden beast` number, since 2 + 3 + 2 + 0 + 2 + 213 + 231 + 213 = 666.

It can be written as a sum of positive squares in only one way, i.e., 16661238185124 + 6540975046089 = 4081818^2 + 2557533^2 .

It is not a de Polignac number, because 23202213231213 - 22 = 23202213231209 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23202213238213) 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, 1289011846170 + ... + 1289011846187.

It is an arithmetic number, because the mean of its divisors is an integer number (5585718000109).

Almost surely, 223202213231213 is an apocalyptic number.

It is an amenable number.

23202213231213 is a deficient number, since it is larger than the sum of its proper divisors (10312094769441).

23202213231213 is a wasteful number, since it uses less digits than its factorization.

23202213231213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2578023692363 (or 2578023692360 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 23202213231213 its reverse (31213231220232), we get a palindrome (54415444451445).

The spelling of 23202213231213 in words is "twenty-three trillion, two hundred two billion, two hundred thirteen million, two hundred thirty-one thousand, two hundred thirteen".

Divisors: 1 3 9 2578023692357 7734071077071 23202213231213