103231224521 has 2 divisors, whose sum is σ = 103231224522. Its totient is φ = 103231224520.

The previous prime is 103231224491. The next prime is 103231224563. The reversal of 103231224521 is 125422132301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57774852496 + 45456372025 = 240364^2 + 213205^2 .

It is a cyclic number.

It is not a de Polignac number, because 103231224521 - 2¹⁰ = 103231223497 is a prime.

It is a super-2 number, since 2×103231224521² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (103231224581) 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, 51615612260 + 51615612261.

It is an arithmetic number, because the mean of its divisors is an integer number (51615612261).

Almost surely, 2^103231224521 is an apocalyptic number.

It is an amenable number.

103231224521 is a deficient number, since it is larger than the sum of its proper divisors (1).

103231224521 is an equidigital number, since it uses as much as digits as its factorization.

103231224521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 103231224521 its reverse (125422132301), we get a palindrome (228653356822).

The spelling of 103231224521 in words is "one hundred three billion, two hundred thirty-one million, two hundred twenty-four thousand, five hundred twenty-one".