12551543151131 has 4 divisors (see below), whose sum is σ = 12551550337872. Its totient is φ = 12551535964392.

The previous prime is 12551543151079. The next prime is 12551543151137. The reversal of 12551543151131 is 13115134515521.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12551543151131 is a prime.

It is a super-2 number, since 2×12551543151131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12551543151137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 895730 + ... + 5089736.

It is an arithmetic number, because the mean of its divisors is an integer number (3137887584468).

Almost surely, 2^{12551543151131} is an apocalyptic number.

12551543151131 is a deficient number, since it is larger than the sum of its proper divisors (7186741).

12551543151131 is an equidigital number, since it uses as much as digits as its factorization.

12551543151131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7186740.

The product of its digits is 45000, while the sum is 38.

Adding to 12551543151131 its reverse (13115134515521), we get a palindrome (25666677666652).

The spelling of 12551543151131 in words is "twelve trillion, five hundred fifty-one billion, five hundred forty-three million, one hundred fifty-one thousand, one hundred thirty-one".