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13212023311 = 41365988069
BaseRepresentation
bin11000100110111111…
…10111101000001111
31021002202202022202201
430103133313220033
5204024234221221
610023003302331
7645256226254
oct142337675017
937082668681
1013212023311
11566a92a733
12268881a9a7
1313272a8796
148d499b42b
15524d83891
hex3137f7a0f

13212023311 has 8 divisors (see below), whose sum is σ = 13538120400. Its totient is φ = 12886109760.

The previous prime is 13212023309. The next prime is 13212023339. The reversal of 13212023311 is 11332021231.

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

It is not a de Polignac number, because 13212023311 - 21 = 13212023309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13212023371) 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, 105985 + ... + 194053.

It is an arithmetic number, because the mean of its divisors is an integer number (1692265050).

Almost surely, 213212023311 is an apocalyptic number.

13212023311 is a deficient number, since it is larger than the sum of its proper divisors (326097089).

13212023311 is an equidigital number, since it uses as much as digits as its factorization.

13212023311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91769.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 13212023311 its reverse (11332021231), we get a palindrome (24544044542).

The spelling of 13212023311 in words is "thirteen billion, two hundred twelve million, twenty-three thousand, three hundred eleven".

Divisors: 1 41 3659 88069 150019 3610829 322244471 13212023311