12512311132 has 12 divisors (see below), whose sum is σ = 21897925560. Its totient is φ = 6255760976.

The previous prime is 12512311111. The next prime is 12512311159. The reversal of 12512311132 is 23111321521.

It is a super-2 number, since 2×12512311132² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20407 + ... + 159502.

It is an arithmetic number, because the mean of its divisors is an integer number (1824827130).

Almost surely, 2^12512311132 is an apocalyptic number.

It is an amenable number.

12512311132 is a deficient number, since it is larger than the sum of its proper divisors (9385614428).

12512311132 is a wasteful number, since it uses less digits than its factorization.

12512311132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197300 (or 197298 counting only the distinct ones).

The product of its digits is 360, while the sum is 22.

Adding to 12512311132 its reverse (23111321521), we get a palindrome (35623632653).

The spelling of 12512311132 in words is "twelve billion, five hundred twelve million, three hundred eleven thousand, one hundred thirty-two".