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23103331211 = 171359019483
BaseRepresentation
bin10101100001000100…
…001101101110001011
32012122002222211100202
4111201010031232023
5334303423044321
614340304322415
71445344034522
oct254104155613
965562884322
1023103331211
119886256764
12458931340b
1322425cacac
1411925094b9
1590342170b
hex56110db8b

23103331211 has 4 divisors (see below), whose sum is σ = 24462350712. Its totient is φ = 21744311712.

The previous prime is 23103331187. The next prime is 23103331231. The reversal of 23103331211 is 11213330132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23103331211 - 226 = 23036222347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23103331231) 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, 679509725 + ... + 679509758.

It is an arithmetic number, because the mean of its divisors is an integer number (6115587678).

Almost surely, 223103331211 is an apocalyptic number.

23103331211 is a deficient number, since it is larger than the sum of its proper divisors (1359019501).

23103331211 is a wasteful number, since it uses less digits than its factorization.

23103331211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1359019500.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 23103331211 its reverse (11213330132), we get a palindrome (34316661343).

The spelling of 23103331211 in words is "twenty-three billion, one hundred three million, three hundred thirty-one thousand, two hundred eleven".

Divisors: 1 17 1359019483 23103331211