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120131111291 is a prime number
BaseRepresentation
bin110111111100001011…
…1110100100101111011
3102111002010212202101012
41233320113310211323
53432012031030131
6131104254344135
711451650412032
oct1577027644573
9374063782335
10120131111291
1146a46975a64
121b3477bb04b
13b436401909
145b58915719
1531d175352b
hex1bf85f497b

120131111291 has 2 divisors, whose sum is σ = 120131111292. Its totient is φ = 120131111290.

The previous prime is 120131111213. The next prime is 120131111323. The reversal of 120131111291 is 192111131021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 120131111291 - 230 = 119057369467 is a prime.

It is not a weakly prime, because it can be changed into another prime (120131114291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60065555645 + 60065555646.

It is an arithmetic number, because the mean of its divisors is an integer number (60065555646).

Almost surely, 2120131111291 is an apocalyptic number.

120131111291 is a deficient number, since it is larger than the sum of its proper divisors (1).

120131111291 is an equidigital number, since it uses as much as digits as its factorization.

120131111291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 23.

The spelling of 120131111291 in words is "one hundred twenty billion, one hundred thirty-one million, one hundred eleven thousand, two hundred ninety-one".