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23113221101 = 79292572419
BaseRepresentation
bin10101100001101001…
…111100001111101101
32012122210121021201222
4111201221330033231
5334313441033401
614341300313125
71445524065155
oct254151741755
965583537658
1023113221101
1198908a1123
1245906a27a5
1322446816b9
141193961765
15904226c1b
hex561a7c3ed

23113221101 has 4 divisors (see below), whose sum is σ = 23405793600. Its totient is φ = 22820648604.

The previous prime is 23113221077. The next prime is 23113221107. The reversal of 23113221101 is 10112231132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-23113221101 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23113221101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23113221107) 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, 146286131 + ... + 146286288.

It is an arithmetic number, because the mean of its divisors is an integer number (5851448400).

Almost surely, 223113221101 is an apocalyptic number.

It is an amenable number.

23113221101 is a deficient number, since it is larger than the sum of its proper divisors (292572499).

23113221101 is an equidigital number, since it uses as much as digits as its factorization.

23113221101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292572498.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 23113221101 its reverse (10112231132), we get a palindrome (33225452233).

The spelling of 23113221101 in words is "twenty-three billion, one hundred thirteen million, two hundred twenty-one thousand, one hundred one".

Divisors: 1 79 292572419 23113221101