113232212443421 has 4 divisors (see below), whose sum is σ = 115088478221244. Its totient is φ = 111375946665600.

The previous prime is 113232212443397. The next prime is 113232212443433. The reversal of 113232212443421 is 124344212232311.

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 22129215388900 + 91102997054521 = 4704170^2 + 9544789^2 .

It is a cyclic number.

It is not a de Polignac number, because 113232212443421 - 2¹⁰ = 113232212442397 is a prime.

It is a super-2 number, since 2×113232212443421² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113232212445421) 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, 928132888820 + ... + 928132888941.

It is an arithmetic number, because the mean of its divisors is an integer number (28772119555311).

Almost surely, 2^{113232212443421} is an apocalyptic number.

It is an amenable number.

113232212443421 is a deficient number, since it is larger than the sum of its proper divisors (1856265777823).

113232212443421 is an equidigital number, since it uses as much as digits as its factorization.

113232212443421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1856265777822.

The product of its digits is 55296, while the sum is 35.

Adding to 113232212443421 its reverse (124344212232311), we get a palindrome (237576424675732).

The spelling of 113232212443421 in words is "one hundred thirteen trillion, two hundred thirty-two billion, two hundred twelve million, four hundred forty-three thousand, four hundred twenty-one".