113421397 has 2 divisors, whose sum is σ = 113421398. Its totient is φ = 113421396.

The previous prime is 113421361. The next prime is 113421403. The reversal of 113421397 is 793124311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93431556 + 19989841 = 9666^2 + 4471^2 .

It is a cyclic number.

It is not a de Polignac number, because 113421397 - 2¹⁵ = 113388629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113421307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56710698 + 56710699.

It is an arithmetic number, because the mean of its divisors is an integer number (56710699).

Almost surely, 2^113421397 is an apocalyptic number.

It is an amenable number.

113421397 is a deficient number, since it is larger than the sum of its proper divisors (1).

113421397 is an equidigital number, since it uses as much as digits as its factorization.

113421397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536, while the sum is 31.

The square root of 113421397 is about 10649.9482158365. The cubic root of 113421397 is about 484.0590350434.

The spelling of 113421397 in words is "one hundred thirteen million, four hundred twenty-one thousand, three hundred ninety-seven".