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120881439797 is a prime number
BaseRepresentation
bin111000010010100011…
…0000110010000110101
3102120000102202101120212
41300211012012100311
53440031122033142
6131310540435205
711506361166506
oct1604506062065
9376012671525
10120881439797
11472a146a968
121b516b48b05
13b5259b2a91
145bca430bad
153227567d82
hex1c25186435

120881439797 has 2 divisors, whose sum is σ = 120881439798. Its totient is φ = 120881439796.

The previous prime is 120881439781. The next prime is 120881439821. The reversal of 120881439797 is 797934188021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87184963441 + 33696476356 = 295271^2 + 183566^2 .

It is a cyclic number.

It is not a de Polignac number, because 120881439797 - 24 = 120881439781 is a prime.

It is a super-2 number, since 2×1208814397972 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120881439737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60440719898 + 60440719899.

It is an arithmetic number, because the mean of its divisors is an integer number (60440719899).

Almost surely, 2120881439797 is an apocalyptic number.

It is an amenable number.

120881439797 is a deficient number, since it is larger than the sum of its proper divisors (1).

120881439797 is an equidigital number, since it uses as much as digits as its factorization.

120881439797 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6096384, while the sum is 59.

The spelling of 120881439797 in words is "one hundred twenty billion, eight hundred eighty-one million, four hundred thirty-nine thousand, seven hundred ninety-seven".