123532331144 has 8 divisors (see below), whose sum is σ = 231623120910. Its totient is φ = 61766165568.

The previous prime is 123532331099. The next prime is 123532331177. The reversal of 123532331144 is 441133235321.

It can be written as a sum of positive squares in only one way, i.e., 81075728644 + 42456602500 = 284738^2 + 206050^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 123532331144.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7720770689 + ... + 7720770704.

Almost surely, 2^123532331144 is an apocalyptic number.

It is an amenable number.

123532331144 is a deficient number, since it is larger than the sum of its proper divisors (108090789766).

123532331144 is a wasteful number, since it uses less digits than its factorization.

123532331144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15441541399 (or 15441541395 counting only the distinct ones).

The product of its digits is 25920, while the sum is 32.

Adding to 123532331144 its reverse (441133235321), we get a palindrome (564665566465).

The spelling of 123532331144 in words is "one hundred twenty-three billion, five hundred thirty-two million, three hundred thirty-one thousand, one hundred forty-four".