101304521 has 2 divisors, whose sum is σ = 101304522. Its totient is φ = 101304520.

The previous prime is 101304473. The next prime is 101304551. The reversal of 101304521 is 125403101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59521225 + 41783296 = 7715^2 + 6464^2 .

It is a cyclic number.

It is not a de Polignac number, because 101304521 - 2²² = 97110217 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101304521.

It is not a weakly prime, because it can be changed into another prime (101304551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50652260 + 50652261.

It is an arithmetic number, because the mean of its divisors is an integer number (50652261).

Almost surely, 2^101304521 is an apocalyptic number.

It is an amenable number.

101304521 is a deficient number, since it is larger than the sum of its proper divisors (1).

101304521 is an equidigital number, since it uses as much as digits as its factorization.

101304521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 101304521 is about 10065.0147044105. The cubic root of 101304521 is about 466.1685198559.

Adding to 101304521 its reverse (125403101), we get a palindrome (226707622).

The spelling of 101304521 in words is "one hundred one million, three hundred four thousand, five hundred twenty-one".