1158871110001 has 16 divisors (see below), whose sum is σ = 1267072702848. Its totient is φ = 1051146835200.

The previous prime is 1158871109987. The next prime is 1158871110041. The reversal of 1158871110001 is 1000111788511.

It is a happy number.

It is not a de Polignac number, because 1158871110001 - 2¹⁵ = 1158871077233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1158871110041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9881161 + ... + 9997753.

It is an arithmetic number, because the mean of its divisors is an integer number (79192043928).

Almost surely, 2^{1158871110001} is an apocalyptic number.

1158871110001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1158871110001 is a deficient number, since it is larger than the sum of its proper divisors (108201592847).

1158871110001 is a wasteful number, since it uses less digits than its factorization.

1158871110001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118632.

The product of its (nonzero) digits is 2240, while the sum is 34.

Adding to 1158871110001 its reverse (1000111788511), we get a palindrome (2158982898512).

The spelling of 1158871110001 in words is "one trillion, one hundred fifty-eight billion, eight hundred seventy-one million, one hundred ten thousand, one".