113205047 has 2 divisors, whose sum is σ = 113205048. Its totient is φ = 113205046.

The previous prime is 113205031. The next prime is 113205061. The reversal of 113205047 is 740502311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 113205047 - 2⁴ = 113205031 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113205017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56602523 + 56602524.

It is an arithmetic number, because the mean of its divisors is an integer number (56602524).

Almost surely, 2^113205047 is an apocalyptic number.

113205047 is a deficient number, since it is larger than the sum of its proper divisors (1).

113205047 is an equidigital number, since it uses as much as digits as its factorization.

113205047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 113205047 is about 10639.7860410818. The cubic root of 113205047 is about 483.7510601414.

Adding to 113205047 its reverse (740502311), we get a palindrome (853707358).

The spelling of 113205047 in words is "one hundred thirteen million, two hundred five thousand, forty-seven".