113303621 has 2 divisors, whose sum is σ = 113303622. Its totient is φ = 113303620.

The previous prime is 113303591. The next prime is 113303639. The reversal of 113303621 is 126303311.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111534721 + 1768900 = 10561^2 + 1330^2 .

It is a cyclic number.

It is not a de Polignac number, because 113303621 - 2⁶ = 113303557 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 113303593 and 113303602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113306621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56651810 + 56651811.

It is an arithmetic number, because the mean of its divisors is an integer number (56651811).

Almost surely, 2^113303621 is an apocalyptic number.

It is an amenable number.

113303621 is a deficient number, since it is larger than the sum of its proper divisors (1).

113303621 is an equidigital number, since it uses as much as digits as its factorization.

113303621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 113303621 is about 10644.4173631064. The cubic root of 113303621 is about 483.8914291568.

Adding to 113303621 its reverse (126303311), we get a palindrome (239606932).

The spelling of 113303621 in words is "one hundred thirteen million, three hundred three thousand, six hundred twenty-one".