1130321121 has 8 divisors (see below), whose sum is σ = 1509555840. Its totient is φ = 752316912.

The previous prime is 1130321113. The next prime is 1130321147. The reversal of 1130321121 is 1211230311.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1130321121 - 2³ = 1130321113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1130321121.

It is not an unprimeable number, because it can be changed into a prime (1130321111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 305481 + ... + 309158.

It is an arithmetic number, because the mean of its divisors is an integer number (188694480).

Almost surely, 2^1130321121 is an apocalyptic number.

It is an amenable number.

1130321121 is a deficient number, since it is larger than the sum of its proper divisors (379234719).

1130321121 is an equidigital number, since it uses as much as digits as its factorization.

1130321121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615255.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 1130321121 is about 33620.2486754634. The cubic root of 1130321121 is about 1041.6790926674.

Adding to 1130321121 its reverse (1211230311), we get a palindrome (2341551432).

The spelling of 1130321121 in words is "one billion, one hundred thirty million, three hundred twenty-one thousand, one hundred twenty-one".