113204120203 has 8 divisors (see below), whose sum is σ = 116884505600. Its totient is φ = 109525524840.

The previous prime is 113204120177. The next prime is 113204120243. The reversal of 113204120203 is 302021402311.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113204120203 is a prime.

It is a super-2 number, since 2×113204120203² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113204120243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 318375 + ... + 572512.

It is an arithmetic number, because the mean of its divisors is an integer number (14610563200).

Almost surely, 2^113204120203 is an apocalyptic number.

113204120203 is a deficient number, since it is larger than the sum of its proper divisors (3680385397).

113204120203 is an equidigital number, since it uses as much as digits as its factorization.

113204120203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895017.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 113204120203 its reverse (302021402311), we get a palindrome (415225522514).

The spelling of 113204120203 in words is "one hundred thirteen billion, two hundred four million, one hundred twenty thousand, two hundred three".