112120203121 has 4 divisors (see below), whose sum is σ = 113230304244. Its totient is φ = 111010102000.

The previous prime is 112120203119. The next prime is 112120203133. The reversal of 112120203121 is 121302021211.

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 77061760000 + 35058443121 = 277600^2 + 187239^2 .

It is a cyclic number.

It is not a de Polignac number, because 112120203121 - 2¹ = 112120203119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112120203095 and 112120203104.

It is not an unprimeable number, because it can be changed into a prime (112120243121) 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, 555050410 + ... + 555050611.

It is an arithmetic number, because the mean of its divisors is an integer number (28307576061).

Almost surely, 2^112120203121 is an apocalyptic number.

It is an amenable number.

112120203121 is a deficient number, since it is larger than the sum of its proper divisors (1110101123).

112120203121 is a wasteful number, since it uses less digits than its factorization.

112120203121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110101122.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 112120203121 its reverse (121302021211), we get a palindrome (233422224332).

The spelling of 112120203121 in words is "one hundred twelve billion, one hundred twenty million, two hundred three thousand, one hundred twenty-one".