424415123081 has 2 divisors, whose sum is σ = 424415123082. Its totient is φ = 424415123080.

The previous prime is 424415123071. The next prime is 424415123203. The reversal of 424415123081 is 180321514424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 389895341056 + 34519782025 = 624416^2 + 185795^2 .

It is a cyclic number.

It is not a de Polignac number, because 424415123081 - 2¹⁴ = 424415106697 is a prime.

It is a super-2 number, since 2×424415123081² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (424415123071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212207561540 + 212207561541.

It is an arithmetic number, because the mean of its divisors is an integer number (212207561541).

Almost surely, 2^424415123081 is an apocalyptic number.

It is an amenable number.

424415123081 is a deficient number, since it is larger than the sum of its proper divisors (1).

424415123081 is an equidigital number, since it uses as much as digits as its factorization.

424415123081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30720, while the sum is 35.

The spelling of 424415123081 in words is "four hundred twenty-four billion, four hundred fifteen million, one hundred twenty-three thousand, eighty-one".