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124201331 is a prime number
BaseRepresentation
bin1110110011100…
…10100101110011
322122201002012022
413121302211303
5223243420311
620154022055
73035460002
oct731624563
9278632168
10124201331
1164121331
123571792b
131c968317
14126d0c39
15ad855db
hex7672973

124201331 has 2 divisors, whose sum is σ = 124201332. Its totient is φ = 124201330.

The previous prime is 124201321. The next prime is 124201333. The reversal of 124201331 is 133102421.

It is a strong prime.

It is an emirp because it is prime and its reverse (133102421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 124201331 - 226 = 57092467 is a prime.

It is a super-2 number, since 2×1242013312 = 30851941244343122, which contains 22 as substring.

Together with 124201333, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (124201333) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62100665 + 62100666.

It is an arithmetic number, because the mean of its divisors is an integer number (62100666).

Almost surely, 2124201331 is an apocalyptic number.

124201331 is a deficient number, since it is larger than the sum of its proper divisors (1).

124201331 is an equidigital number, since it uses as much as digits as its factorization.

124201331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 124201331 is about 11144.5650879700. The cubic root of 124201331 is about 498.9328319251.

Adding to 124201331 its reverse (133102421), we get a palindrome (257303752).

The spelling of 124201331 in words is "one hundred twenty-four million, two hundred one thousand, three hundred thirty-one".