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23123332331 = 1115791331299
BaseRepresentation
bin10101100010010000…
…100000110011101011
32012200111121222201222
4111202100200303223
5334324033113311
614342301132255
71446006040031
oct254220406353
965614558658
1023123332331
119896577910
124593b5a08b
1322467b1a88
141195034551
15905072adb
hex562420ceb

23123332331 has 8 divisors (see below), whose sum is σ = 25241448000. Its totient is φ = 21007882440.

The previous prime is 23123332319. The next prime is 23123332363. The reversal of 23123332331 is 13323332132.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23123332331 - 214 = 23123315947 is a prime.

It is a super-2 number, since 2×231233323312 (a number of 22 digits) contains 22 as substring.

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 23123332331.

It is not an unprimeable number, because it can be changed into a prime (23123332031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 648281 + ... + 683018.

It is an arithmetic number, because the mean of its divisors is an integer number (3155181000).

Almost surely, 223123332331 is an apocalyptic number.

23123332331 is a deficient number, since it is larger than the sum of its proper divisors (2118115669).

23123332331 is a wasteful number, since it uses less digits than its factorization.

23123332331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1332889.

The product of its digits is 5832, while the sum is 26.

Adding to 23123332331 its reverse (13323332132), we get a palindrome (36446664463).

The spelling of 23123332331 in words is "twenty-three billion, one hundred twenty-three million, three hundred thirty-two thousand, three hundred thirty-one".

Divisors: 1 11 1579 17369 1331299 14644289 2102121121 23123332331