123144444402 has 32 divisors (see below), whose sum is σ = 281488175232. Its totient is φ = 35182232064.

The previous prime is 123144444383. The next prime is 123144444403. The reversal of 123144444402 is 204444441321.

It is not an unprimeable number, because it can be changed into a prime (123144444403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 834498 + ... + 970914.

It is an arithmetic number, because the mean of its divisors is an integer number (8796505476).

Almost surely, 2^123144444402 is an apocalyptic number.

123144444402 is an abundant number, since it is smaller than the sum of its proper divisors (158343730830).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123144444402 is a wasteful number, since it uses less digits than its factorization.

123144444402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157922.

The product of its (nonzero) digits is 49152, while the sum is 33.

Adding to 123144444402 its reverse (204444441321), we get a palindrome (327588885723).

The spelling of 123144444402 in words is "one hundred twenty-three billion, one hundred forty-four million, four hundred forty-four thousand, four hundred two".