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11313201131 = 71159340861
BaseRepresentation
bin10101000100101000…
…11011111111101011
31002012102210011102022
422202110123333223
5141132134414011
65110333055055
7550231423451
oct124224337753
932172704368
1011313201131
114886009501
12223892748b
1310b3a9806b
1479471c9d1
154633098db
hex2a251bfeb

11313201131 has 4 divisors (see below), whose sum is σ = 11472542064. Its totient is φ = 11153860200.

The previous prime is 11313201079. The next prime is 11313201167. The reversal of 11313201131 is 13110231311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13110231311 = 23570010057.

It is a cyclic number.

It is not a de Polignac number, because 11313201131 - 214 = 11313184747 is a prime.

It is a super-2 number, since 2×113132011312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11313201631) 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, 79670360 + ... + 79670501.

It is an arithmetic number, because the mean of its divisors is an integer number (2868135516).

Almost surely, 211313201131 is an apocalyptic number.

11313201131 is a deficient number, since it is larger than the sum of its proper divisors (159340933).

11313201131 is an equidigital number, since it uses as much as digits as its factorization.

11313201131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159340932.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 11313201131 its reverse (13110231311), we get a palindrome (24423432442).

The spelling of 11313201131 in words is "eleven billion, three hundred thirteen million, two hundred one thousand, one hundred thirty-one".

Divisors: 1 71 159340861 11313201131