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23113311133 = 1123295330937
BaseRepresentation
bin10101100001101010…
…010010001110011101
32012122210202212020111
4111201222102032131
5334314001424013
614341302250021
71445524621513
oct254152221635
965583685214
1023113311133
119890952830
124590726911
1322446b3683
1411939864b3
1590424373d
hex561a9239d

23113311133 has 16 divisors (see below), whose sum is σ = 26320565376. Its totient is φ = 20091075840.

The previous prime is 23113311107. The next prime is 23113311139. The reversal of 23113311133 is 33111331132.

It is not a de Polignac number, because 23113311133 - 25 = 23113311101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23113311139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 731641 + ... + 762577.

It is an arithmetic number, because the mean of its divisors is an integer number (1645035336).

Almost surely, 223113311133 is an apocalyptic number.

23113311133 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

23113311133 is a deficient number, since it is larger than the sum of its proper divisors (3207254243).

23113311133 is a wasteful number, since it uses less digits than its factorization.

23113311133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33924.

The product of its digits is 486, while the sum is 22.

Adding to 23113311133 its reverse (33111331132), we get a palindrome (56224642265).

The spelling of 23113311133 in words is "twenty-three billion, one hundred thirteen million, three hundred eleven thousand, one hundred thirty-three".

Divisors: 1 11 23 253 2953 30937 32483 67919 340307 711551 747109 7827061 91356961 1004926571 2101210103 23113311133