123221432041 has 4 divisors (see below), whose sum is σ = 128578885632. Its totient is φ = 117863978452.

The previous prime is 123221432039. The next prime is 123221432137. The reversal of 123221432041 is 140234122321.

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 123221432041 - 2¹ = 123221432039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123221431997 and 123221432015.

It is not an unprimeable number, because it can be changed into a prime (123221442041) 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, 2678726761 + ... + 2678726806.

It is an arithmetic number, because the mean of its divisors is an integer number (32144721408).

Almost surely, 2^123221432041 is an apocalyptic number.

It is an amenable number.

123221432041 is a deficient number, since it is larger than the sum of its proper divisors (5357453591).

123221432041 is an equidigital number, since it uses as much as digits as its factorization.

123221432041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5357453590.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 123221432041 its reverse (140234122321), we get a palindrome (263455554362).

The spelling of 123221432041 in words is "one hundred twenty-three billion, two hundred twenty-one million, four hundred thirty-two thousand, forty-one".