12533123460 has 96 divisors (see below), whose sum is σ = 41227869312. Its totient is φ = 2804613120.

The previous prime is 12533123437. The next prime is 12533123467. The reversal of 12533123460 is 6432133521.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (12533123467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 721789 + ... + 738948.

It is an arithmetic number, because the mean of its divisors is an integer number (429456972).

Almost surely, 2^12533123460 is an apocalyptic number.

12533123460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12533123460 is an abundant number, since it is smaller than the sum of its proper divisors (28694745852).

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

12533123460 is a wasteful number, since it uses less digits than its factorization.

12533123460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1460773 (or 1460771 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

Adding to 12533123460 its reverse (6432133521), we get a palindrome (18965256981).

The spelling of 12533123460 in words is "twelve billion, five hundred thirty-three million, one hundred twenty-three thousand, four hundred sixty".