2311515511045 has 16 divisors (see below), whose sum is σ = 2987913438720. Its totient is φ = 1706551493184.

The previous prime is 2311515511021. The next prime is 2311515511087. The reversal of 2311515511045 is 5401155151132.

It is a cyclic number.

It is not a de Polignac number, because 2311515511045 - 2⁵ = 2311515511013 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2311515511045.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 4040175 + ... + 4576684.

It is an arithmetic number, because the mean of its divisors is an integer number (186744589920).

Almost surely, 2^{2311515511045} is an apocalyptic number.

It is an amenable number.

2311515511045 is a deficient number, since it is larger than the sum of its proper divisors (676397927675).

2311515511045 is a wasteful number, since it uses less digits than its factorization.

2311515511045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8621004.

The product of its (nonzero) digits is 15000, while the sum is 34.

The spelling of 2311515511045 in words is "two trillion, three hundred eleven billion, five hundred fifteen million, five hundred eleven thousand, forty-five".