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20231301321 = 32711109267833
BaseRepresentation
bin10010110101111000…
…010010100011001001
31221012221202121000100
4102311320102203021
5312413203120241
613143311000013
71314231136530
oct226570224311
957187677010
1020231301321
118642051140
123b07509009
131ba55a131a
14d9ccd5317
157d62099b6
hex4b5e128c9

20231301321 has 48 divisors (see below), whose sum is σ = 36768251520. Its totient is φ = 10413308160.

The previous prime is 20231301283. The next prime is 20231301329. The reversal of 20231301321 is 12310313202.

20231301321 is a `hidden beast` number, since 20 + 23 + 1 + 301 + 321 = 666.

It is not a de Polignac number, because 20231301321 - 26 = 20231301257 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20231301294 and 20231301303.

It is not an unprimeable number, because it can be changed into a prime (20231301329) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 58380 + ... + 209453.

It is an arithmetic number, because the mean of its divisors is an integer number (766005240).

Almost surely, 220231301321 is an apocalyptic number.

20231301321 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20231301321 is a deficient number, since it is larger than the sum of its proper divisors (16536950199).

20231301321 is a wasteful number, since it uses less digits than its factorization.

20231301321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267966 (or 267963 counting only the distinct ones).

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

Adding to 20231301321 its reverse (12310313202), we get a palindrome (32541614523).

The spelling of 20231301321 in words is "twenty billion, two hundred thirty-one million, three hundred one thousand, three hundred twenty-one".

Divisors: 1 3 7 9 11 21 33 63 77 99 109 231 327 693 763 981 1199 2289 3597 6867 8393 10791 25179 75537 267833 803499 1874831 2410497 2946163 5624493 8838489 16873479 20623141 26515467 29193797 61869423 87581391 185608269 204356579 262744173 321131767 613069737 963395301 1839209211 2247922369 2890185903 6743767107 20231301321