103541331221 has 2 divisors, whose sum is σ = 103541331222. Its totient is φ = 103541331220.

The previous prime is 103541331191. The next prime is 103541331281. The reversal of 103541331221 is 122133145301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98228962225 + 5312368996 = 313415^2 + 72886^2 .

It is a cyclic number.

It is not a de Polignac number, because 103541331221 - 2³⁴ = 86361462037 is a prime.

It is a super-3 number, since 3×103541331221³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103541331281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51770665610 + 51770665611.

It is an arithmetic number, because the mean of its divisors is an integer number (51770665611).

Almost surely, 2^103541331221 is an apocalyptic number.

It is an amenable number.

103541331221 is a deficient number, since it is larger than the sum of its proper divisors (1).

103541331221 is an equidigital number, since it uses as much as digits as its factorization.

103541331221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 26.

Adding to 103541331221 its reverse (122133145301), we get a palindrome (225674476522).

The spelling of 103541331221 in words is "one hundred three billion, five hundred forty-one million, three hundred thirty-one thousand, two hundred twenty-one".