113104421 has 2 divisors, whose sum is σ = 113104422. Its totient is φ = 113104420.

The previous prime is 113104393. The next prime is 113104423. The reversal of 113104421 is 124401311.

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., 101808100 + 11296321 = 10090^2 + 3361^2 .

It is a cyclic number.

It is not a de Polignac number, because 113104421 - 2²² = 108910117 is a prime.

It is a super-2 number, since 2×113104421² = 25585220099490482, which contains 22 as substring.

Together with 113104423, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 113104421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113104423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56552210 + 56552211.

It is an arithmetic number, because the mean of its divisors is an integer number (56552211).

Almost surely, 2^113104421 is an apocalyptic number.

It is an amenable number.

113104421 is a deficient number, since it is larger than the sum of its proper divisors (1).

113104421 is an equidigital number, since it uses as much as digits as its factorization.

113104421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 113104421 is about 10635.0562292825. The cubic root of 113104421 is about 483.6076850135.

Adding to 113104421 its reverse (124401311), we get a palindrome (237505732).

The spelling of 113104421 in words is "one hundred thirteen million, one hundred four thousand, four hundred twenty-one".