1311311530451 has 8 divisors (see below), whose sum is σ = 1420637828064. Its totient is φ = 1203193258560.

The previous prime is 1311311530427. The next prime is 1311311530457. The reversal of 1311311530451 is 1540351131131.

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 1311311530451 - 2²² = 1311307336147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1311311530457) 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, 302004170 + ... + 302008511.

It is an arithmetic number, because the mean of its divisors is an integer number (177579728508).

Almost surely, 2^{1311311530451} is an apocalyptic number.

1311311530451 is a deficient number, since it is larger than the sum of its proper divisors (109326297613).

1311311530451 is a wasteful number, since it uses less digits than its factorization.

1311311530451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604012861.

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

Adding to 1311311530451 its reverse (1540351131131), we get a palindrome (2851662661582).

The spelling of 1311311530451 in words is "one trillion, three hundred eleven billion, three hundred eleven million, five hundred thirty thousand, four hundred fifty-one".