1130723451 has 24 divisors (see below), whose sum is σ = 1918805616. Its totient is φ = 632571840.

The previous prime is 1130723449. The next prime is 1130723483. The reversal of 1130723451 is 1543270311.

1130723451 is a `hidden beast` number, since 11 + 307 + 2 + 345 + 1 = 666.

It is not a de Polignac number, because 1130723451 - 2¹ = 1130723449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1130723851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 438000 + ... + 440573.

It is an arithmetic number, because the mean of its divisors is an integer number (79950234).

Almost surely, 2^1130723451 is an apocalyptic number.

1130723451 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1130723451 is a deficient number, since it is larger than the sum of its proper divisors (788082165).

1130723451 is a wasteful number, since it uses less digits than its factorization.

1130723451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878603 (or 878600 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 1130723451 is about 33626.2315908280. The cubic root of 1130723451 is about 1041.8026708336.

Adding to 1130723451 its reverse (1543270311), we get a palindrome (2673993762).

The spelling of 1130723451 in words is "one billion, one hundred thirty million, seven hundred twenty-three thousand, four hundred fifty-one".