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23303121331 = 717195824549
BaseRepresentation
bin10101101100111110…
…010110100110110011
32020011000221012212211
4111230332112212303
5340211044340311
614412202432551
71453321156150
oct255476264663
966130835784
1023303121331
119979005a66
124624202757
132274b108b9
1411b0c75227
15915c38821
hex56cf969b3

23303121331 has 8 divisors (see below), whose sum is σ = 28198735200. Its totient is φ = 18799156608.

The previous prime is 23303121329. The next prime is 23303121337. The reversal of 23303121331 is 13312130332.

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 23303121331 - 21 = 23303121329 is a prime.

It is a super-2 number, since 2×233031213312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23303121337) 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, 97912156 + ... + 97912393.

It is an arithmetic number, because the mean of its divisors is an integer number (3524841900).

Almost surely, 223303121331 is an apocalyptic number.

23303121331 is a deficient number, since it is larger than the sum of its proper divisors (4895613869).

23303121331 is a wasteful number, since it uses less digits than its factorization.

23303121331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195824573.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 23303121331 its reverse (13312130332), we get a palindrome (36615251663).

Subtracting from 23303121331 its reverse (13312130332), we obtain a palindrome (9990990999).

The spelling of 23303121331 in words is "twenty-three billion, three hundred three million, one hundred twenty-one thousand, three hundred thirty-one".

Divisors: 1 7 17 119 195824549 1370771843 3329017333 23303121331