12132405248 has 26 divisors (see below), whose sum is σ = 24261856674. Its totient is φ = 6066200576.

The previous prime is 12132405239. The next prime is 12132405251. The reversal of 12132405248 is 84250423121.

It can be written as a sum of positive squares in only one way, i.e., 12075372544 + 57032704 = 109888^2 + 7552^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1476911 + ... + 1485102.

Almost surely, 2^12132405248 is an apocalyptic number.

It is an amenable number.

12132405248 is a deficient number, since it is larger than the sum of its proper divisors (12129451426).

12132405248 is an frugal number, since it uses more digits than its factorization.

12132405248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2962037 (or 2962015 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

Adding to 12132405248 its reverse (84250423121), we get a palindrome (96382828369).

The spelling of 12132405248 in words is "twelve billion, one hundred thirty-two million, four hundred five thousand, two hundred forty-eight".