1082171121 has 4 divisors (see below), whose sum is σ = 1442894832. Its totient is φ = 721447412.

The previous prime is 1082171117. The next prime is 1082171131. The reversal of 1082171121 is 1211712801.

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 a cyclic number.

It is not a de Polignac number, because 1082171121 - 2² = 1082171117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1082171091 and 1082171100.

It is not an unprimeable number, because it can be changed into a prime (1082171131) 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, 180361851 + ... + 180361856.

It is an arithmetic number, because the mean of its divisors is an integer number (360723708).

Almost surely, 2^1082171121 is an apocalyptic number.

It is an amenable number.

1082171121 is a deficient number, since it is larger than the sum of its proper divisors (360723711).

1082171121 is an equidigital number, since it uses as much as digits as its factorization.

1082171121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360723710.

The product of its (nonzero) digits is 224, while the sum is 24.

The square root of 1082171121 is about 32896.3694197399. The cubic root of 1082171121 is about 1026.6726197978.

Adding to 1082171121 its reverse (1211712801), we get a palindrome (2293883922).

The spelling of 1082171121 in words is "one billion, eighty-two million, one hundred seventy-one thousand, one hundred twenty-one".