11105051243 has 12 divisors (see below), whose sum is σ = 13145332704. Its totient is φ = 9318922800.

The previous prime is 11105051227. The next prime is 11105051249. The reversal of 11105051243 is 34215050111.

It is not a de Polignac number, because 11105051243 - 2⁴ = 11105051227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11105051249) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3528323 + ... + 3531468.

It is an arithmetic number, because the mean of its divisors is an integer number (1095444392).

Almost surely, 2^11105051243 is an apocalyptic number.

11105051243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11105051243 is a deficient number, since it is larger than the sum of its proper divisors (2040281461).

11105051243 is a wasteful number, since it uses less digits than its factorization.

11105051243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7059826 (or 7059815 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 23.

The spelling of 11105051243 in words is "eleven billion, one hundred five million, fifty-one thousand, two hundred forty-three".