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120131279 is a prime number
BaseRepresentation
bin1110010100100…
…00111011001111
322101001022010122
413022100323033
5221223200104
615530455155
72656045652
oct712207317
9271038118
10120131279
11618a1454
12342944bb
131bb718c8
1411d51899
15a82e6be
hex7290ecf

120131279 has 2 divisors, whose sum is σ = 120131280. Its totient is φ = 120131278.

The previous prime is 120131273. The next prime is 120131383. The reversal of 120131279 is 972131021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 120131279 - 28 = 120131023 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120131273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60065639 + 60065640.

It is an arithmetic number, because the mean of its divisors is an integer number (60065640).

Almost surely, 2120131279 is an apocalyptic number.

120131279 is a deficient number, since it is larger than the sum of its proper divisors (1).

120131279 is an equidigital number, since it uses as much as digits as its factorization.

120131279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 120131279 is about 10960.4415513245. The cubic root of 120131279 is about 493.4222170118.

The spelling of 120131279 in words is "one hundred twenty million, one hundred thirty-one thousand, two hundred seventy-nine".