87101121 has 4 divisors (see below), whose sum is σ = 116134832. Its totient is φ = 58067412.

The previous prime is 87101099. The next prime is 87101141. The reversal of 87101121 is 12110178.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 87101121 - 2⁵ = 87101089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87101141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14516851 + ... + 14516856.

It is an arithmetic number, because the mean of its divisors is an integer number (29033708).

Almost surely, 2^87101121 is an apocalyptic number.

It is an amenable number.

87101121 is a deficient number, since it is larger than the sum of its proper divisors (29033711).

87101121 is a wasteful number, since it uses less digits than its factorization.

87101121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29033710.

The product of its (nonzero) digits is 112, while the sum is 21.

The square root of 87101121 is about 9332.7981334646. The cubic root of 87101121 is about 443.2763707820.

Adding to 87101121 its reverse (12110178), we get a palindrome (99211299).

The spelling of 87101121 in words is "eighty-seven million, one hundred one thousand, one hundred twenty-one".