123424001201 has 4 divisors (see below), whose sum is σ = 123863232804. Its totient is φ = 122984769600.

The previous prime is 123424001177. The next prime is 123424001219. The reversal of 123424001201 is 102100424321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 64910810176 + 58513191025 = 254776^2 + 241895^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123424001201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123424001231) 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, 219615380 + ... + 219615941.

It is an arithmetic number, because the mean of its divisors is an integer number (30965808201).

Almost surely, 2^123424001201 is an apocalyptic number.

It is an amenable number.

123424001201 is a deficient number, since it is larger than the sum of its proper divisors (439231603).

123424001201 is an equidigital number, since it uses as much as digits as its factorization.

123424001201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439231602.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 123424001201 its reverse (102100424321), we get a palindrome (225524425522).

The spelling of 123424001201 in words is "one hundred twenty-three billion, four hundred twenty-four million, one thousand, two hundred one".