112421312121 has 4 divisors (see below), whose sum is σ = 149895082832. Its totient is φ = 74947541412.

The previous prime is 112421312119. The next prime is 112421312131. The reversal of 112421312121 is 121213124211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 112421312121 - 2¹ = 112421312119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112421312131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18736885351 + ... + 18736885356.

It is an arithmetic number, because the mean of its divisors is an integer number (37473770708).

Almost surely, 2^112421312121 is an apocalyptic number.

It is an amenable number.

112421312121 is a deficient number, since it is larger than the sum of its proper divisors (37473770711).

112421312121 is an equidigital number, since it uses as much as digits as its factorization.

112421312121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37473770710.

The product of its digits is 192, while the sum is 21.

Adding to 112421312121 its reverse (121213124211), we get a palindrome (233634436332).

The spelling of 112421312121 in words is "one hundred twelve billion, four hundred twenty-one million, three hundred twelve thousand, one hundred twenty-one".