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23200131321 = 331913449171
BaseRepresentation
bin10101100110110101…
…011110100011111001
32012212212010210011000
4111212311132203321
5340003213200241
614354043155213
71450630601553
oct254665364371
965785123130
1023200131321
119925962054
1245b5815b09
132259691173
1411a13064d3
1590bb92eb6
hex566d5e8f9

23200131321 has 16 divisors (see below), whose sum is σ = 34388608320. Its totient is φ = 15458634720.

The previous prime is 23200131287. The next prime is 23200131347. The reversal of 23200131321 is 12313100232.

It is not a de Polignac number, because 23200131321 - 214 = 23200114937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23200131294 and 23200131303.

It is not an unprimeable number, because it can be changed into a prime (23200131391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 172935 + ... + 276236.

It is an arithmetic number, because the mean of its divisors is an integer number (2149288020).

Almost surely, 223200131321 is an apocalyptic number.

It is an amenable number.

23200131321 is a deficient number, since it is larger than the sum of its proper divisors (11188476999).

23200131321 is a wasteful number, since it uses less digits than its factorization.

23200131321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451093 (or 451087 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 23200131321 its reverse (12313100232), we get a palindrome (35513231553).

The spelling of 23200131321 in words is "twenty-three billion, two hundred million, one hundred thirty-one thousand, three hundred twenty-one".

Divisors: 1 3 9 27 1913 5739 17217 51651 449171 1347513 4042539 12127617 859264123 2577792369 7733377107 23200131321