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122230231311 = 31942150910007
BaseRepresentation
bin111000111010101111…
…1010101000100001111
3102200111102202002201010
41301311133111010033
54000311414400221
6132052442020303
711554656552336
oct1616537250417
9380442662633
10122230231311
11479238629a1
121b8327a7693
13b6ac272076
145cb7612d1d
1532a5b94c76
hex1c757d510f

122230231311 has 32 divisors (see below), whose sum is σ = 172313740800. Its totient is φ = 76855685760.

The previous prime is 122230231307. The next prime is 122230231339. The reversal of 122230231311 is 113132032221.

It is not a de Polignac number, because 122230231311 - 22 = 122230231307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122230231301) 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, 12209470 + ... + 12219476.

It is an arithmetic number, because the mean of its divisors is an integer number (5384804400).

Almost surely, 2122230231311 is an apocalyptic number.

122230231311 is a deficient number, since it is larger than the sum of its proper divisors (50083509489).

122230231311 is a wasteful number, since it uses less digits than its factorization.

122230231311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10959.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 122230231311 its reverse (113132032221), we get a palindrome (235362263532).

The spelling of 122230231311 in words is "one hundred twenty-two billion, two hundred thirty million, two hundred thirty-one thousand, three hundred eleven".

Divisors: 1 3 19 57 421 509 1263 1527 7999 9671 10007 23997 29013 30021 190133 214289 570399 642867 4071491 4212947 5093563 12214473 12638841 15280689 80045993 96777697 240137979 290333091 2144390023 6433170069 40743410437 122230231311