113131441 has 2 divisors, whose sum is σ = 113131442. Its totient is φ = 113131440.

The previous prime is 113131429. The next prime is 113131451. The reversal of 113131441 is 144131311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107744400 + 5387041 = 10380^2 + 2321^2 .

It is an emirp because it is prime and its reverse (144131311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 113131441 - 2⁹ = 113130929 is a prime.

It is not a weakly prime, because it can be changed into another prime (113131451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56565720 + 56565721.

It is an arithmetic number, because the mean of its divisors is an integer number (56565721).

Almost surely, 2^113131441 is an apocalyptic number.

It is an amenable number.

113131441 is a deficient number, since it is larger than the sum of its proper divisors (1).

113131441 is an equidigital number, since it uses as much as digits as its factorization.

113131441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144, while the sum is 19.

The square root of 113131441 is about 10636.3264805101. The cubic root of 113131441 is about 483.6461923182.

Adding to 113131441 its reverse (144131311), we get a palindrome (257262752).

The spelling of 113131441 in words is "one hundred thirteen million, one hundred thirty-one thousand, four hundred forty-one".