113124421 has 2 divisors, whose sum is σ = 113124422. Its totient is φ = 113124420.

The previous prime is 113124391. The next prime is 113124433. The reversal of 113124421 is 124421311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57547396 + 55577025 = 7586^2 + 7455^2 .

It is a cyclic number.

It is not a de Polignac number, because 113124421 - 2⁷ = 113124293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113124481) 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, 56562210 + 56562211.

It is an arithmetic number, because the mean of its divisors is an integer number (56562211).

Almost surely, 2^113124421 is an apocalyptic number.

It is an amenable number.

113124421 is a deficient number, since it is larger than the sum of its proper divisors (1).

113124421 is an equidigital number, since it uses as much as digits as its factorization.

113124421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 192, while the sum is 19.

The square root of 113124421 is about 10635.9964742379. The cubic root of 113124421 is about 483.6361884193.

Adding to 113124421 its reverse (124421311), we get a palindrome (237545732).

It can be divided in two parts, 1131 and 24421, that added together give a palindrome (25552).

The spelling of 113124421 in words is "one hundred thirteen million, one hundred twenty-four thousand, four hundred twenty-one".