113121120211 has 12 divisors (see below), whose sum is σ = 130883943400. Its totient is φ = 97424886240.

The previous prime is 113121120199. The next prime is 113121120221. The reversal of 113121120211 is 112021121311.

It is a happy number.

It is not a de Polignac number, because 113121120211 - 2²³ = 113112731603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (113121120221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24599946 + ... + 24604543.

Almost surely, 2^113121120211 is an apocalyptic number.

113121120211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

113121120211 is a deficient number, since it is larger than the sum of its proper divisors (17762823189).

113121120211 is a wasteful number, since it uses less digits than its factorization.

113121120211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49204530 (or 49204519 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 113121120211 its reverse (112021121311), we get a palindrome (225142241522).

It can be divided in two parts, 113121 and 120211, that added together give a palindrome (233332).

The spelling of 113121120211 in words is "one hundred thirteen billion, one hundred twenty-one million, one hundred twenty thousand, two hundred eleven".