12551521302311 has 4 divisors (see below), whose sum is σ = 12553178713992. Its totient is φ = 12549863890632.

The previous prime is 12551521302301. The next prime is 12551521302319. The reversal of 12551521302311 is 11320312515521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12551521302311 - 2¹⁰ = 12551521301287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12551521302319) 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, 828694481 + ... + 828709626.

It is an arithmetic number, because the mean of its divisors is an integer number (3138294678498).

Almost surely, 2^{12551521302311} is an apocalyptic number.

12551521302311 is a deficient number, since it is larger than the sum of its proper divisors (1657411681).

12551521302311 is an equidigital number, since it uses as much as digits as its factorization.

12551521302311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1657411680.

The product of its (nonzero) digits is 9000, while the sum is 32.

Adding to 12551521302311 its reverse (11320312515521), we get a palindrome (23871833817832).

The spelling of 12551521302311 in words is "twelve trillion, five hundred fifty-one billion, five hundred twenty-one million, three hundred two thousand, three hundred eleven".