123241223421 has 12 divisors (see below), whose sum is σ = 178024288572. Its totient is φ = 82156574976.

The previous prime is 123241223407. The next prime is 123241223429. The reversal of 123241223421 is 124322142321.

123241223421 is a `hidden beast` number, since 1 + 232 + 4 + 1 + 2 + 2 + 3 + 421 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 33861152196 + 89380071225 = 184014^2 + 298965^2 .

It is not a de Polignac number, because 123241223421 - 2²⁹ = 122704352509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123241223429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 163986 + ... + 522851.

It is an arithmetic number, because the mean of its divisors is an integer number (14835357381).

Almost surely, 2^123241223421 is an apocalyptic number.

It is an amenable number.

123241223421 is a deficient number, since it is larger than the sum of its proper divisors (54783065151).

123241223421 is a wasteful number, since it uses less digits than its factorization.

123241223421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706780 (or 706777 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

Adding to 123241223421 its reverse (124322142321), we get a palindrome (247563365742).

The spelling of 123241223421 in words is "one hundred twenty-three billion, two hundred forty-one million, two hundred twenty-three thousand, four hundred twenty-one".