120042231409 has 2 divisors, whose sum is σ = 120042231410. Its totient is φ = 120042231408.

The previous prime is 120042231403. The next prime is 120042231433. The reversal of 120042231409 is 904132240021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119320503184 + 721728225 = 345428^2 + 26865^2 .

It is a cyclic number.

It is not a de Polignac number, because 120042231409 - 2¹¹ = 120042229361 is a prime.

It is a super-2 number, since 2×120042231409² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (120042231403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60021115704 + 60021115705.

It is an arithmetic number, because the mean of its divisors is an integer number (60021115705).

Almost surely, 2^120042231409 is an apocalyptic number.

It is an amenable number.

120042231409 is a deficient number, since it is larger than the sum of its proper divisors (1).

120042231409 is an equidigital number, since it uses as much as digits as its factorization.

120042231409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 28.

The spelling of 120042231409 in words is "one hundred twenty billion, forty-two million, two hundred thirty-one thousand, four hundred nine".