113030521 has 2 divisors, whose sum is σ = 113030522. Its totient is φ = 113030520.

The previous prime is 113030513. The next prime is 113030543. The reversal of 113030521 is 125030311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111070521 + 1960000 = 10539^2 + 1400^2 .

It is a cyclic number.

It is not a de Polignac number, because 113030521 - 2³ = 113030513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 113030495 and 113030504.

It is not a weakly prime, because it can be changed into another prime (113030581) 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, 56515260 + 56515261.

It is an arithmetic number, because the mean of its divisors is an integer number (56515261).

Almost surely, 2^113030521 is an apocalyptic number.

It is an amenable number.

113030521 is a deficient number, since it is larger than the sum of its proper divisors (1).

113030521 is an equidigital number, since it uses as much as digits as its factorization.

113030521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 113030521 is about 10631.5813028919. The cubic root of 113030521 is about 483.5023357735.

Adding to 113030521 its reverse (125030311), we get a palindrome (238060832).

The spelling of 113030521 in words is "one hundred thirteen million, thirty thousand, five hundred twenty-one".