1011134042155 has 4 divisors (see below), whose sum is σ = 1213360850592. Its totient is φ = 808907233720.

The previous prime is 1011134042129. The next prime is 1011134042201. The reversal of 1011134042155 is 5512404311101.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1011134042155 - 2¹¹ = 1011134040107 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101113404211 + ... + 101113404220.

It is an arithmetic number, because the mean of its divisors is an integer number (303340212648).

Almost surely, 2^{1011134042155} is an apocalyptic number.

1011134042155 is a deficient number, since it is larger than the sum of its proper divisors (202226808437).

1011134042155 is an equidigital number, since it uses as much as digits as its factorization.

1011134042155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202226808436.

The product of its (nonzero) digits is 2400, while the sum is 28.

Adding to 1011134042155 its reverse (5512404311101), we get a palindrome (6523538353256).

The spelling of 1011134042155 in words is "one trillion, eleven billion, one hundred thirty-four million, forty-two thousand, one hundred fifty-five".