1311045116045 has 32 divisors (see below), whose sum is σ = 1846743660288. Its totient is φ = 874636697088.

The previous prime is 1311045116021. The next prime is 1311045116071. The reversal of 1311045116045 is 5406115401131.

It is not a de Polignac number, because 1311045116045 - 2⁶ = 1311045115981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20783042 + ... + 20846028.

It is an arithmetic number, because the mean of its divisors is an integer number (57710739384).

Almost surely, 2^{1311045116045} is an apocalyptic number.

It is an amenable number.

1311045116045 is a deficient number, since it is larger than the sum of its proper divisors (535698544243).

1311045116045 is a wasteful number, since it uses less digits than its factorization.

1311045116045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79109.

The product of its (nonzero) digits is 7200, while the sum is 32.

The spelling of 1311045116045 in words is "one trillion, three hundred eleven billion, forty-five million, one hundred sixteen thousand, forty-five".