123144421203 has 16 divisors (see below), whose sum is σ = 182441982240. Its totient is φ = 82093669632.

The previous prime is 123144421201. The next prime is 123144421219. The reversal of 123144421203 is 302124441321.

123144421203 is a `hidden beast` number, since 1 + 2 + 3 + 1 + 444 + 212 + 0 + 3 = 666.

It is not a de Polignac number, because 123144421203 - 2¹ = 123144421201 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (123144421201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1194475 + ... + 1293467.

It is an arithmetic number, because the mean of its divisors is an integer number (11402623890).

Almost surely, 2^123144421203 is an apocalyptic number.

123144421203 is a deficient number, since it is larger than the sum of its proper divisors (59297561037).

123144421203 is an equidigital number, since it uses as much as digits as its factorization.

123144421203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145075 (or 145069 counting only the distinct ones).

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

Adding to 123144421203 its reverse (302124441321), we get a palindrome (425268862524).

The spelling of 123144421203 in words is "one hundred twenty-three billion, one hundred forty-four million, four hundred twenty-one thousand, two hundred three".