113121122232101 has 4 divisors (see below), whose sum is σ = 113121385221804. Its totient is φ = 113120859242400.

The previous prime is 113121122232091. The next prime is 113121122232161. The reversal of 113121122232101 is 101232221121311.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 44739055503076 + 68382066729025 = 6688726^2 + 8269345^2 .

It is a cyclic number.

It is not a de Polignac number, because 113121122232101 - 2²² = 113121118037797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113121122232161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130848590 + ... + 131710271.

It is an arithmetic number, because the mean of its divisors is an integer number (28280346305451).

Almost surely, 2^{113121122232101} is an apocalyptic number.

It is an amenable number.

113121122232101 is a deficient number, since it is larger than the sum of its proper divisors (262989703).

113121122232101 is an equidigital number, since it uses as much as digits as its factorization.

113121122232101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262989702.

The product of its (nonzero) digits is 288, while the sum is 23.

Adding to 113121122232101 its reverse (101232221121311), we get a palindrome (214353343353412).

The spelling of 113121122232101 in words is "one hundred thirteen trillion, one hundred twenty-one billion, one hundred twenty-two million, two hundred thirty-two thousand, one hundred one".