123242421481 has 3 divisors (see below), whose sum is σ = 123242772541. Its totient is φ = 123242070422.

The previous prime is 123242421461. The next prime is 123242421487. The reversal of 123242421481 is 184124242321.

The square root of 123242421481 is 351059.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 123242421481 - 2⁷ = 123242421353 is a prime.

It is a super-2 number, since 2×123242421481² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123242421487) 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 2 ways as a sum of consecutive naturals, for example, 175530 + ... + 526588.

Almost surely, 2^123242421481 is an apocalyptic number.

123242421481 is the 351059-th square number.

123242421481 is the 175530-th centered octagonal number.

It is an amenable number.

123242421481 is a deficient number, since it is larger than the sum of its proper divisors (351060).

123242421481 is an frugal number, since it uses more digits than its factorization.

123242421481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702118 (or 351059 counting only the distinct ones).

The product of its digits is 24576, while the sum is 34.

The spelling of 123242421481 in words is "one hundred twenty-three billion, two hundred forty-two million, four hundred twenty-one thousand, four hundred eighty-one".