112355551421 has 4 divisors (see below), whose sum is σ = 112356657372. Its totient is φ = 112354445472.

The previous prime is 112355551403. The next prime is 112355551433. The reversal of 112355551421 is 124155553211.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 40919625796 + 71435925625 = 202286^2 + 267275^2 .

It is a cyclic number.

It is not a de Polignac number, because 112355551421 - 2¹⁰ = 112355550397 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 (112355557421) 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, 383216 + ... + 609561.

It is an arithmetic number, because the mean of its divisors is an integer number (28089164343).

Almost surely, 2^112355551421 is an apocalyptic number.

It is an amenable number.

112355551421 is a deficient number, since it is larger than the sum of its proper divisors (1105951).

112355551421 is an equidigital number, since it uses as much as digits as its factorization.

112355551421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105950.

The product of its digits is 30000, while the sum is 35.

The spelling of 112355551421 in words is "one hundred twelve billion, three hundred fifty-five million, five hundred fifty-one thousand, four hundred twenty-one".