1311046031625 has 64 divisors (see below), whose sum is σ = 2483380463616. Its totient is φ = 608021304000.

The previous prime is 1311046031611. The next prime is 1311046031629. The reversal of 1311046031625 is 5261306401131.

It is a happy number.

It is not a de Polignac number, because 1311046031625 - 2⁵ = 1311046031593 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (1311046031629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6814459 + ... + 7004208.

It is an arithmetic number, because the mean of its divisors is an integer number (38802819744).

Almost surely, 2^{1311046031625} is an apocalyptic number.

1311046031625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1311046031625 is a deficient number, since it is larger than the sum of its proper divisors (1172334431991).

1311046031625 is a wasteful number, since it uses less digits than its factorization.

1311046031625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13818719 (or 13818709 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The spelling of 1311046031625 in words is "one trillion, three hundred eleven billion, forty-six million, thirty-one thousand, six hundred twenty-five".