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1223230020113 = 1637504478651
BaseRepresentation
bin10001110011001110001…
…100001101101000010001
311022221101000002101211202
4101303032030031220101
5130020133341120423
62333535532320545
7154242531421133
oct21631614155021
94287330071752
101223230020113
11431850503022
121790a1313155
138b47221233a
14432c17b1053
1521c442d4728
hex11cce30da11

1223230020113 has 4 divisors (see below), whose sum is σ = 1230734498928. Its totient is φ = 1215725541300.

The previous prime is 1223230020083. The next prime is 1223230020119. The reversal of 1223230020113 is 3110200323221.

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 not a de Polignac number, because 1223230020113 - 218 = 1223229757969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1223230020119) 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, 3752239163 + ... + 3752239488.

It is an arithmetic number, because the mean of its divisors is an integer number (307683624732).

Almost surely, 21223230020113 is an apocalyptic number.

It is an amenable number.

1223230020113 is a deficient number, since it is larger than the sum of its proper divisors (7504478815).

1223230020113 is an equidigital number, since it uses as much as digits as its factorization.

1223230020113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7504478814.

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

Adding to 1223230020113 its reverse (3110200323221), we get a palindrome (4333430343334).

The spelling of 1223230020113 in words is "one trillion, two hundred twenty-three billion, two hundred thirty million, twenty thousand, one hundred thirteen".

Divisors: 1 163 7504478651 1223230020113