1115723430 has 64 divisors (see below), whose sum is σ = 3150290880. Its totient is φ = 280023552.

The previous prime is 1115723429. The next prime is 1115723431. The reversal of 1115723430 is 343275111.

It is an interprime number because it is at equal distance from previous prime (1115723429) and next prime (1115723431).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1115723394 and 1115723403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115723431) 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 31 ways as a sum of consecutive naturals, for example, 116949 + ... + 126128.

It is an arithmetic number, because the mean of its divisors is an integer number (49223295).

Almost surely, 2^1115723430 is an apocalyptic number.

1115723430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1115723430 is an abundant number, since it is smaller than the sum of its proper divisors (2034567450).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1115723430 is a wasteful number, since it uses less digits than its factorization.

1115723430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243110 (or 243104 counting only the distinct ones).

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

The square root of 1115723430 is about 33402.4464672874. The cubic root of 1115723430 is about 1037.1753448799.

Adding to 1115723430 its reverse (343275111), we get a palindrome (1458998541).

The spelling of 1115723430 in words is "one billion, one hundred fifteen million, seven hundred twenty-three thousand, four hundred thirty".