1311440306115 has 16 divisors (see below), whose sum is σ = 2098339293600. Its totient is φ = 699423228672.

The previous prime is 1311440306101. The next prime is 1311440306131. The reversal of 1311440306115 is 5116030441131.

It is not a de Polignac number, because 1311440306115 - 2²⁹ = 1310903435203 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 251871 + ... + 1638999.

It is an arithmetic number, because the mean of its divisors is an integer number (131146205850).

Almost surely, 2^{1311440306115} is an apocalyptic number.

1311440306115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1311440306115 is a deficient number, since it is larger than the sum of its proper divisors (786898987485).

1311440306115 is a wasteful number, since it uses less digits than its factorization.

1311440306115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1450166.

The product of its (nonzero) digits is 4320, while the sum is 30.

Adding to 1311440306115 its reverse (5116030441131), we get a palindrome (6427470747246).

The spelling of 1311440306115 in words is "one trillion, three hundred eleven billion, four hundred forty million, three hundred six thousand, one hundred fifteen".