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2020121323 = 11617142403
BaseRepresentation
bin111100001101000…
…1001101011101011
312012210012210111021
41320122021223223
513114122340243
6532242113311
7101026514353
oct17032115353
95183183437
102020121323
11947340060
1248464b837
132626a0a7c
14152415b63
15bc5396ed
hex78689aeb

2020121323 has 16 divisors (see below), whose sum is σ = 2271497472. Its totient is φ = 1780884000.

The previous prime is 2020121317. The next prime is 2020121329. The reversal of 2020121323 is 3231210202.

It is an interprime number because it is at equal distance from previous prime (2020121317) and next prime (2020121329).

It is a cyclic number.

It is not a de Polignac number, because 2020121323 - 217 = 2019990251 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2020121297 and 2020121306.

It is not an unprimeable number, because it can be changed into a prime (2020121329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26440 + ... + 68842.

It is an arithmetic number, because the mean of its divisors is an integer number (141968592).

Almost surely, 22020121323 is an apocalyptic number.

2020121323 is a deficient number, since it is larger than the sum of its proper divisors (251376149).

2020121323 is a wasteful number, since it uses less digits than its factorization.

2020121323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42546.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2020121323 is about 44945.7597888833. The cubic root of 2020121323 is about 1264.1321721515.

Adding to 2020121323 its reverse (3231210202), we get a palindrome (5251331525).

The spelling of 2020121323 in words is "two billion, twenty million, one hundred twenty-one thousand, three hundred twenty-three".

Divisors: 1 11 61 71 671 781 4331 42403 47641 466433 2586583 3010613 28452413 33116743 183647393 2020121323