103442433041581 has 2 divisors, whose sum is σ = 103442433041582. Its totient is φ = 103442433041580.

The previous prime is 103442433041543. The next prime is 103442433041593. The reversal of 103442433041581 is 185140334244301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98880471025956 + 4561962015625 = 9943866^2 + 2135875^2 .

It is a cyclic number.

It is not a de Polignac number, because 103442433041581 - 2⁹ = 103442433041069 is a prime.

It is a super-2 number, since 2×103442433041581² (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 (103442433047581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51721216520790 + 51721216520791.

It is an arithmetic number, because the mean of its divisors is an integer number (51721216520791).

Almost surely, 2^{103442433041581} is an apocalyptic number.

It is an amenable number.

103442433041581 is a deficient number, since it is larger than the sum of its proper divisors (1).

103442433041581 is an equidigital number, since it uses as much as digits as its factorization.

103442433041581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 552960, while the sum is 43.

Adding to 103442433041581 its reverse (185140334244301), we get a palindrome (288582767285882).

The spelling of 103442433041581 in words is "one hundred three trillion, four hundred forty-two billion, four hundred thirty-three million, forty-one thousand, five hundred eighty-one".