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113101231 is a prime number
BaseRepresentation
bin1101011110111…
…00100110101111
321212211010201111
412233130212233
5212423214411
615120052451
72542226125
oct657344657
9255733644
10113101231
115892a6a1
1231a64127
131a57cb09
1411041915
159de1721
hex6bdc9af

113101231 has 2 divisors, whose sum is σ = 113101232. Its totient is φ = 113101230.

The previous prime is 113101217. The next prime is 113101271. The reversal of 113101231 is 132101311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 113101231 - 25 = 113101199 is a prime.

It is a super-2 number, since 2×1131012312 = 25583776907430722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113101201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56550615 + 56550616.

It is an arithmetic number, because the mean of its divisors is an integer number (56550616).

Almost surely, 2113101231 is an apocalyptic number.

113101231 is a deficient number, since it is larger than the sum of its proper divisors (1).

113101231 is an equidigital number, since it uses as much as digits as its factorization.

113101231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 113101231 is about 10634.9062525252. The cubic root of 113101231 is about 483.6031384095.

Adding to 113101231 its reverse (132101311), we get a palindrome (245202542).

The spelling of 113101231 in words is "one hundred thirteen million, one hundred one thousand, two hundred thirty-one".