2111515202023 has 24 divisors (see below), whose sum is σ = 2168189320752. Its totient is φ = 2056095005184.

The previous prime is 2111515201987. The next prime is 2111515202033. The reversal of 2111515202023 is 3202025151112.

It is a happy number.

It is not a de Polignac number, because 2111515202023 - 2⁹ = 2111515201511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111515202033) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 441091236 + ... + 441096022.

It is an arithmetic number, because the mean of its divisors is an integer number (90341221698).

Almost surely, 2^{2111515202023} is an apocalyptic number.

2111515202023 is a deficient number, since it is larger than the sum of its proper divisors (56674118729).

2111515202023 is an equidigital number, since it uses as much as digits as its factorization.

2111515202023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6031 (or 5964 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

The spelling of 2111515202023 in words is "two trillion, one hundred eleven billion, five hundred fifteen million, two hundred two thousand, twenty-three".