1123132085730 has 48 divisors (see below), whose sum is σ = 2922895927224. Its totient is φ = 299219581440.

The previous prime is 1123132085729. The next prime is 1123132085731. The reversal of 1123132085730 is 375802313211.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1123132085729) and next prime (1123132085731).

It can be written as a sum of positive squares in 4 ways, for example, as 1058340965049 + 64791120681 = 1028757^2 + 254541^2 .

It is a super-2 number, since 2×1123132085730² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1123132085731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5785399 + ... + 5976378.

Almost surely, 2^{1123132085730} is an apocalyptic number.

1123132085730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1123132085730 is an abundant number, since it is smaller than the sum of its proper divisors (1799763841494).

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

1123132085730 is a wasteful number, since it uses less digits than its factorization.

1123132085730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11762851 (or 11762848 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

Adding to 1123132085730 its reverse (375802313211), we get a palindrome (1498934398941).

The spelling of 1123132085730 in words is "one trillion, one hundred twenty-three billion, one hundred thirty-two million, eighty-five thousand, seven hundred thirty".