1130344721 has 4 divisors (see below), whose sum is σ = 1233103344. Its totient is φ = 1027586100.

The previous prime is 1130344717. The next prime is 1130344753. The reversal of 1130344721 is 1274430311.

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 1130344721 - 2² = 1130344717 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1130344771) 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, 51379295 + ... + 51379316.

It is an arithmetic number, because the mean of its divisors is an integer number (308275836).

Almost surely, 2^1130344721 is an apocalyptic number.

1130344721 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1130344721 is a deficient number, since it is larger than the sum of its proper divisors (102758623).

1130344721 is a wasteful number, since it uses less digits than its factorization.

1130344721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102758622.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 1130344721 is about 33620.5996525939. The cubic root of 1130344721 is about 1041.6863423640.

The spelling of 1130344721 in words is "one billion, one hundred thirty million, three hundred forty-four thousand, seven hundred twenty-one".