124331042446381 has 2 divisors, whose sum is σ = 124331042446382. Its totient is φ = 124331042446380.

The previous prime is 124331042446357. The next prime is 124331042446477. The reversal of 124331042446381 is 183644240133421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112117729936356 + 12213312510025 = 10588566^2 + 3494755^2 .

It is an emirp because it is prime and its reverse (183644240133421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 124331042446381 - 2¹³ = 124331042438189 is a prime.

It is a super-2 number, since 2×124331042446381² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124331042446181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62165521223190 + 62165521223191.

It is an arithmetic number, because the mean of its divisors is an integer number (62165521223191).

Almost surely, 2^{124331042446381} is an apocalyptic number.

It is an amenable number.

124331042446381 is a deficient number, since it is larger than the sum of its proper divisors (1).

124331042446381 is an equidigital number, since it uses as much as digits as its factorization.

124331042446381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1327104, while the sum is 46.

The spelling of 124331042446381 in words is "one hundred twenty-four trillion, three hundred thirty-one billion, forty-two million, four hundred forty-six thousand, three hundred eighty-one".