103124521 has 2 divisors, whose sum is σ = 103124522. Its totient is φ = 103124520.

The previous prime is 103124519. The next prime is 103124531. The reversal of 103124521 is 125421301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 92852496 + 10272025 = 9636^2 + 3205^2 .

It is a cyclic number.

It is not a de Polignac number, because 103124521 - 2¹ = 103124519 is a prime.

Together with 103124519, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (103124531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51562260 + 51562261.

It is an arithmetic number, because the mean of its divisors is an integer number (51562261).

Almost surely, 2^103124521 is an apocalyptic number.

It is an amenable number.

103124521 is a deficient number, since it is larger than the sum of its proper divisors (1).

103124521 is an equidigital number, since it uses as much as digits as its factorization.

103124521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 103124521 is about 10155.0244214379. The cubic root of 103124521 is about 468.9436377821.

Adding to 103124521 its reverse (125421301), we get a palindrome (228545822).

It can be divided in two parts, 1031 and 24521, that added together give a palindrome (25552).

The spelling of 103124521 in words is "one hundred three million, one hundred twenty-four thousand, five hundred twenty-one".