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115211423 is a prime number
BaseRepresentation
bin1101101110111…
…11110010011111
322000210100100202
412313133302133
5213443231143
615233214115
72566165235
oct667376237
9260710322
10115211423
115a041058
123270133b
131ab3b452
1411430955
15a1abab8
hex6ddfc9f

115211423 has 2 divisors, whose sum is σ = 115211424. Its totient is φ = 115211422.

The previous prime is 115211413. The next prime is 115211449. The reversal of 115211423 is 324112511.

It is a weak prime.

It is an emirp because it is prime and its reverse (324112511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 115211423 - 26 = 115211359 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 115211395 and 115211404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115211413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57605711 + 57605712.

It is an arithmetic number, because the mean of its divisors is an integer number (57605712).

Almost surely, 2115211423 is an apocalyptic number.

115211423 is a deficient number, since it is larger than the sum of its proper divisors (1).

115211423 is an equidigital number, since it uses as much as digits as its factorization.

115211423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 240, while the sum is 20.

The square root of 115211423 is about 10733.6584164021. The cubic root of 115211423 is about 486.5922417517.

Adding to 115211423 its reverse (324112511), we get a palindrome (439323934).

The spelling of 115211423 in words is "one hundred fifteen million, two hundred eleven thousand, four hundred twenty-three".