1311531138914 has 16 divisors (see below), whose sum is σ = 2064049011456. Its totient is φ = 624208366800.

The previous prime is 1311531138913. The next prime is 1311531138917. The reversal of 1311531138914 is 4198311351131.

It is a happy number.

It is a super-2 number, since 2×1311531138914² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1311531138913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173387432 + ... + 173394995.

It is an arithmetic number, because the mean of its divisors is an integer number (129003063216).

Almost surely, 2^{1311531138914} is an apocalyptic number.

1311531138914 is a deficient number, since it is larger than the sum of its proper divisors (752517872542).

1311531138914 is a wasteful number, since it uses less digits than its factorization.

1311531138914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346782521.

The product of its digits is 38880, while the sum is 41.

The spelling of 1311531138914 in words is "one trillion, three hundred eleven billion, five hundred thirty-one million, one hundred thirty-eight thousand, nine hundred fourteen".