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23203321113 = 3719458312689
BaseRepresentation
bin10101100111000001…
…101001010100011001
32012220002010211201110
4111213001221110121
5340010022233423
614354235410533
71450666655340
oct254701512431
965802124643
1023203321113
119927740645
1245b68b3a49
13225a23a00b
1411a18d6b57
1590c0c3193
hex567069519

23203321113 has 32 divisors (see below), whose sum is σ = 37229414400. Its totient is φ = 12557465856.

The previous prime is 23203321087. The next prime is 23203321123. The reversal of 23203321113 is 31112330232.

It is not a de Polignac number, because 23203321113 - 225 = 23169766681 is a prime.

It is a super-2 number, since 2×232033211132 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 23203321113.

It is not an unprimeable number, because it can be changed into a prime (23203321123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1822273 + ... + 1834961.

It is an arithmetic number, because the mean of its divisors is an integer number (1163419200).

Almost surely, 223203321113 is an apocalyptic number.

It is an amenable number.

23203321113 is a deficient number, since it is larger than the sum of its proper divisors (14026093287).

23203321113 is a wasteful number, since it uses less digits than its factorization.

23203321113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17301.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 23203321113 its reverse (31112330232), we get a palindrome (54315651345).

The spelling of 23203321113 in words is "twenty-three billion, two hundred three million, three hundred twenty-one thousand, one hundred thirteen".

Divisors: 1 3 7 19 21 57 133 399 4583 12689 13749 32081 38067 87077 88823 96243 241091 261231 266469 609539 723273 1687637 1828617 5062911 58153687 174461061 407075809 1104920053 1221227427 3314760159 7734440371 23203321113