42331412112181 has 2 divisors, whose sum is σ = 42331412112182. Its totient is φ = 42331412112180.

The previous prime is 42331412112137. The next prime is 42331412112217. The reversal of 42331412112181 is 18121121413324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41866192627281 + 465219484900 = 6470409^2 + 682070^2 .

It is a cyclic number.

It is not a de Polignac number, because 42331412112181 - 2⁷ = 42331412112053 is a prime.

It is a super-2 number, since 2×42331412112181² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42331412113181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21165706056090 + 21165706056091.

It is an arithmetic number, because the mean of its divisors is an integer number (21165706056091).

Almost surely, 2^{42331412112181} is an apocalyptic number.

It is an amenable number.

42331412112181 is a deficient number, since it is larger than the sum of its proper divisors (1).

42331412112181 is an equidigital number, since it uses as much as digits as its factorization.

42331412112181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9216, while the sum is 34.

The spelling of 42331412112181 in words is "forty-two trillion, three hundred thirty-one billion, four hundred twelve million, one hundred twelve thousand, one hundred eighty-one".