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233031101204231 = 11172942970883497
BaseRepresentation
bin110100111111000011001000…
…000000100100011100000111
31010120002120000002222222002122
4310333003020000210130013
5221020440143402013411
62143341002055000155
7100040640632110001
oct6477031000443407
91116076002888078
10233031101204231
1168283a31581150
1222176ba436905b
13a00497a7a5c45
144178aa0685371
151be1a18c089db
hexd3f0c8024707

233031101204231 has 16 divisors (see below), whose sum is σ = 278451325067040. Its totient is φ = 192509558062080.

The previous prime is 233031101204219. The next prime is 233031101204243. The reversal of 233031101204231 is 132402101130332.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (233031101204219) and next prime (233031101204243).

It is a cyclic number.

It is not a de Polignac number, because 233031101204231 - 214 = 233031101187847 is a prime.

It is a super-2 number, since 2×2330311012042312 (a number of 30 digits) contains 22 as substring.

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 233031101204231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233031101204431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21485436326 + ... + 21485447171.

It is an arithmetic number, because the mean of its divisors is an integer number (17403207816690).

Almost surely, 2233031101204231 is an apocalyptic number.

233031101204231 is a deficient number, since it is larger than the sum of its proper divisors (45420223862809).

233031101204231 is a wasteful number, since it uses less digits than its factorization.

233031101204231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42970883554.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 233031101204231 its reverse (132402101130332), we get a palindrome (365433202334563).

The spelling of 233031101204231 in words is "two hundred thirty-three trillion, thirty-one billion, one hundred one million, two hundred four thousand, two hundred thirty-one".

Divisors: 1 11 17 29 187 319 493 5423 42970883497 472679718467 730505019449 1246155621413 8035555213939 13707711835543 21184645564021 233031101204231