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23211212023 = 127182765449
BaseRepresentation
bin10101100111011111…
…101111110011110111
32012220121222202000101
4111213133233303313
5340014032241043
614355120454531
71451124022036
oct254737576367
965817882011
1023211212023
11993114015a
1245b947a447
13225ba708ac
1411a298c71d
1590cb3124d
hex5677efcf7

23211212023 has 4 divisors (see below), whose sum is σ = 23393977600. Its totient is φ = 23028446448.

The previous prime is 23211211999. The next prime is 23211212029. The reversal of 23211212023 is 32021211232.

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 23211212023 - 229 = 22674341111 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 (23211212029) 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, 91382598 + ... + 91382851.

It is an arithmetic number, because the mean of its divisors is an integer number (5848494400).

Almost surely, 223211212023 is an apocalyptic number.

23211212023 is a deficient number, since it is larger than the sum of its proper divisors (182765577).

23211212023 is a wasteful number, since it uses less digits than its factorization.

23211212023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182765576.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 23211212023 its reverse (32021211232), we get a palindrome (55232423255).

The spelling of 23211212023 in words is "twenty-three billion, two hundred eleven million, two hundred twelve thousand, twenty-three".

Divisors: 1 127 182765449 23211212023