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11202313221231 = 3118931312185951
BaseRepresentation
bin1010001100000011110111…
…1001100111010001101111
31110122221010110200011210020
42203000331321213101233
52432014314141034411
635454134402013223
72234224523165466
oct243007571472157
943587113604706
1011202313221231
1136299688514a0
12130b100047213
136334b1a67192
142aa2a29679dd
151465e7c62606
hexa303de6746f

11202313221231 has 32 divisors (see below), whose sum is σ = 16530000168960. Its totient is φ = 6691548864000.

The previous prime is 11202313221221. The next prime is 11202313221247. The reversal of 11202313221231 is 13212231320211.

It is not a de Polignac number, because 11202313221231 - 214 = 11202313204847 is a prime.

It is a super-2 number, since 2×112023132212312 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11202313221221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5173695 + ... + 7012256.

It is an arithmetic number, because the mean of its divisors is an integer number (516562505280).

Almost surely, 211202313221231 is an apocalyptic number.

11202313221231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11202313221231 is a deficient number, since it is larger than the sum of its proper divisors (5327686947729).

11202313221231 is a wasteful number, since it uses less digits than its factorization.

11202313221231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12186367.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 11202313221231 its reverse (13212231320211), we get a palindrome (24414544541442).

The spelling of 11202313221231 in words is "eleven trillion, two hundred two billion, three hundred thirteen million, two hundred twenty-one thousand, two hundred thirty-one".

Divisors: 1 3 11 33 89 267 313 939 979 2937 3443 10329 27857 83571 306427 919281 12185951 36557853 134045461 402136383 1084549639 3253648917 3814202663 11442607989 11930046029 35790138087 41956229293 125868687879 339464037007 1018392111021 3734104407077 11202313221231