112105131421 has 4 divisors (see below), whose sum is σ = 112428201312. Its totient is φ = 111782061532.

The previous prime is 112105131403. The next prime is 112105131521. The reversal of 112105131421 is 124131501211.

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 a cyclic number.

It is not a de Polignac number, because 112105131421 - 2⁹ = 112105130909 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112105131392 and 112105131401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112105131401) 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, 161534425 + ... + 161535118.

It is an arithmetic number, because the mean of its divisors is an integer number (28107050328).

Almost surely, 2^112105131421 is an apocalyptic number.

It is an amenable number.

112105131421 is a deficient number, since it is larger than the sum of its proper divisors (323069891).

112105131421 is an equidigital number, since it uses as much as digits as its factorization.

112105131421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323069890.

The product of its (nonzero) digits is 240, while the sum is 22.

Adding to 112105131421 its reverse (124131501211), we get a palindrome (236236632632).

The spelling of 112105131421 in words is "one hundred twelve billion, one hundred five million, one hundred thirty-one thousand, four hundred twenty-one".