2101315545015 has 16 divisors (see below), whose sum is σ = 3371629256928. Its totient is φ = 1117526829056.

The previous prime is 2101315544983. The next prime is 2101315545041. The reversal of 2101315545015 is 5105455131012.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2101315545015 - 2⁵ = 2101315544983 is a prime.

It is a congruent number.

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, 198419214 + ... + 198429803.

It is an arithmetic number, because the mean of its divisors is an integer number (210726828558).

Almost surely, 2^{2101315545015} is an apocalyptic number.

2101315545015 is a deficient number, since it is larger than the sum of its proper divisors (1270313711913).

2101315545015 is a wasteful number, since it uses less digits than its factorization.

2101315545015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396849378.

The product of its (nonzero) digits is 15000, while the sum is 33.

The spelling of 2101315545015 in words is "two trillion, one hundred one billion, three hundred fifteen million, five hundred forty-five thousand, fifteen".