113621113 has 2 divisors, whose sum is σ = 113621114. Its totient is φ = 113621112.

The previous prime is 113621099. The next prime is 113621141. The reversal of 113621113 is 311126311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95413824 + 18207289 = 9768^2 + 4267^2 .

It is a cyclic number.

It is not a de Polignac number, because 113621113 - 2⁹ = 113620601 is a prime.

It is not a weakly prime, because it can be changed into another prime (113621143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56810556 + 56810557.

It is an arithmetic number, because the mean of its divisors is an integer number (56810557).

Almost surely, 2^113621113 is an apocalyptic number.

It is an amenable number.

113621113 is a deficient number, since it is larger than the sum of its proper divisors (1).

113621113 is an equidigital number, since it uses as much as digits as its factorization.

113621113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108, while the sum is 19.

The square root of 113621113 is about 10659.3204755275. The cubic root of 113621113 is about 484.3429839567.

Adding to 113621113 its reverse (311126311), we get a palindrome (424747424).

The spelling of 113621113 in words is "one hundred thirteen million, six hundred twenty-one thousand, one hundred thirteen".