103442431222421 has 4 divisors (see below), whose sum is σ = 103592130834144. Its totient is φ = 103292731610700.

The previous prime is 103442431222399. The next prime is 103442431222423. The reversal of 103442431222421 is 124222134244301.

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 103442431222421 - 2²² = 103442427028117 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 (103442431222423) 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, 74849804825 + ... + 74849806206.

It is an arithmetic number, because the mean of its divisors is an integer number (25898032708536).

Almost surely, 2^{103442431222421} is an apocalyptic number.

It is an amenable number.

103442431222421 is a deficient number, since it is larger than the sum of its proper divisors (149699611723).

103442431222421 is an equidigital number, since it uses as much as digits as its factorization.

103442431222421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149699611722.

The product of its (nonzero) digits is 73728, while the sum is 35.

Adding to 103442431222421 its reverse (124222134244301), we get a palindrome (227664565466722).

The spelling of 103442431222421 in words is "one hundred three trillion, four hundred forty-two billion, four hundred thirty-one million, two hundred twenty-two thousand, four hundred twenty-one".