1311230016551 has 8 divisors (see below), whose sum is σ = 1613821558944. Its totient is φ = 1037456716320.

The previous prime is 1311230016521. The next prime is 1311230016617. The reversal of 1311230016551 is 1556100321131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1311230016551 - 2¹⁴ = 1311230000167 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311230016521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7204560440 + ... + 7204560621.

It is an arithmetic number, because the mean of its divisors is an integer number (201727694868).

Almost surely, 2^{1311230016551} is an apocalyptic number.

1311230016551 is a deficient number, since it is larger than the sum of its proper divisors (302591542393).

1311230016551 is a wasteful number, since it uses less digits than its factorization.

1311230016551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14409121081.

The product of its (nonzero) digits is 2700, while the sum is 29.

Adding to 1311230016551 its reverse (1556100321131), we get a palindrome (2867330337682).

The spelling of 1311230016551 in words is "one trillion, three hundred eleven billion, two hundred thirty million, sixteen thousand, five hundred fifty-one".