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13020132311 = 67194330333
BaseRepresentation
bin11000010000000111…
…10111001111010111
31020121101200020210122
430020003313033113
5203131123213221
65551550342155
7640436204264
oct141003671727
936541606718
1013020132311
11558158612a
1226344ba95b
1312c6600404
148b72ca26b
155130cbeab
hex3080f73d7

13020132311 has 4 divisors (see below), whose sum is σ = 13214462712. Its totient is φ = 12825801912.

The previous prime is 13020132283. The next prime is 13020132341. The reversal of 13020132311 is 11323102031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11323102031 = 12721890111.

It is a cyclic number.

It is not a de Polignac number, because 13020132311 - 222 = 13015938007 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13020132311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13020132341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97165100 + ... + 97165233.

It is an arithmetic number, because the mean of its divisors is an integer number (3303615678).

Almost surely, 213020132311 is an apocalyptic number.

13020132311 is a deficient number, since it is larger than the sum of its proper divisors (194330401).

13020132311 is an equidigital number, since it uses as much as digits as its factorization.

13020132311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194330400.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 13020132311 its reverse (11323102031), we get a palindrome (24343234342).

The spelling of 13020132311 in words is "thirteen billion, twenty million, one hundred thirty-two thousand, three hundred eleven".

Divisors: 1 67 194330333 13020132311