10115511005111 has 4 divisors (see below), whose sum is σ = 10115517987432. Its totient is φ = 10115504022792.

The previous prime is 10115511005087. The next prime is 10115511005113. The reversal of 10115511005111 is 11150011551101.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 10115511005111 - 2¹⁴ = 10115510988727 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 (10115511005113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 413945 + ... + 4516898.

It is an arithmetic number, because the mean of its divisors is an integer number (2528879496858).

Almost surely, 2^{10115511005111} is an apocalyptic number.

10115511005111 is a deficient number, since it is larger than the sum of its proper divisors (6982321).

10115511005111 is an equidigital number, since it uses as much as digits as its factorization.

10115511005111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6982320.

The product of its (nonzero) digits is 125, while the sum is 23.

Adding to 10115511005111 its reverse (11150011551101), we get a palindrome (21265522556212).

The spelling of 10115511005111 in words is "ten trillion, one hundred fifteen billion, five hundred eleven million, five thousand, one hundred eleven".