2111142975810 has 384 divisors, whose sum is σ = 6021374091264. Its totient is φ = 471609600000.

The previous prime is 2111142975779. The next prime is 2111142975841. The reversal of 2111142975810 is 185792411112.

It is an interprime number because it is at equal distance from previous prime (2111142975779) and next prime (2111142975841).

It is a super-2 number, since 2×2111142975810² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 661591315 + ... + 661594505.

It is an arithmetic number, because the mean of its divisors is an integer number (15680661696).

Almost surely, 2^{2111142975810} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2111142975810, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3010687045632).

2111142975810 is an abundant number, since it is smaller than the sum of its proper divisors (3910231115454).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2111142975810 is a wasteful number, since it uses less digits than its factorization.

2111142975810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3462 (or 3451 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 42.

The spelling of 2111142975810 in words is "two trillion, one hundred eleven billion, one hundred forty-two million, nine hundred seventy-five thousand, eight hundred ten".