113220341431421 has 4 divisors (see below), whose sum is σ = 129394675921632. Its totient is φ = 97046006941212.

The previous prime is 113220341431387. The next prime is 113220341431433. The reversal of 113220341431421 is 124134143022311.

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 113220341431421 - 2⁶ = 113220341431357 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113220341433421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8087167245095 + ... + 8087167245108.

It is an arithmetic number, because the mean of its divisors is an integer number (32348668980408).

Almost surely, 2^{113220341431421} is an apocalyptic number.

It is an amenable number.

113220341431421 is a deficient number, since it is larger than the sum of its proper divisors (16174334490211).

113220341431421 is an equidigital number, since it uses as much as digits as its factorization.

113220341431421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16174334490210.

The product of its (nonzero) digits is 13824, while the sum is 32.

Adding to 113220341431421 its reverse (124134143022311), we get a palindrome (237354484453732).

The spelling of 113220341431421 in words is "one hundred thirteen trillion, two hundred twenty billion, three hundred forty-one million, four hundred thirty-one thousand, four hundred twenty-one".