124432201081 has 2 divisors, whose sum is σ = 124432201082. Its totient is φ = 124432201080.

The previous prime is 124432201079. The next prime is 124432201111. The reversal of 124432201081 is 180102234421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121045543056 + 3386658025 = 347916^2 + 58195^2 .

It is a cyclic number.

It is not a de Polignac number, because 124432201081 - 2¹ = 124432201079 is a prime.

It is a super-2 number, since 2×124432201081² (a number of 23 digits) contains 22 as substring.

Together with 124432201079, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (124432201001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62216100540 + 62216100541.

It is an arithmetic number, because the mean of its divisors is an integer number (62216100541).

Almost surely, 2^124432201081 is an apocalyptic number.

It is an amenable number.

124432201081 is a deficient number, since it is larger than the sum of its proper divisors (1).

124432201081 is an equidigital number, since it uses as much as digits as its factorization.

124432201081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3072, while the sum is 28.

The spelling of 124432201081 in words is "one hundred twenty-four billion, four hundred thirty-two million, two hundred one thousand, eighty-one".