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120662231 is a prime number
BaseRepresentation
bin1110011000100…
…10100011010111
322102001021110112
413030102203113
5221342142411
615550113235
72663416634
oct714224327
9272037415
10120662231
1162124358
12344ab81b
131bcc9491
141204d18b
15a8d6b8b
hex73128d7

120662231 has 2 divisors, whose sum is σ = 120662232. Its totient is φ = 120662230.

The previous prime is 120662219. The next prime is 120662233. The reversal of 120662231 is 132266021.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-120662231 is a prime.

It is a super-2 number, since 2×1206622312 = 29118747979794722, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 120662233, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 120662197 and 120662206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120662233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60331115 + 60331116.

It is an arithmetic number, because the mean of its divisors is an integer number (60331116).

Almost surely, 2120662231 is an apocalyptic number.

120662231 is a deficient number, since it is larger than the sum of its proper divisors (1).

120662231 is an equidigital number, since it uses as much as digits as its factorization.

120662231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 120662231 is about 10984.6361341648. The cubic root of 120662231 is about 494.1480853884.

The spelling of 120662231 in words is "one hundred twenty million, six hundred sixty-two thousand, two hundred thirty-one".