1011243530 has 64 divisors (see below), whose sum is σ = 2080297728. Its totient is φ = 350338560.

The previous prime is 1011243509. The next prime is 1011243577. The reversal of 1011243530 is 353421101.

It is a super-3 number, since 3×1011243530³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 791252 + ... + 792528.

It is an arithmetic number, because the mean of its divisors is an integer number (32504652).

Almost surely, 2^1011243530 is an apocalyptic number.

1011243530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1011243530 is an abundant number, since it is smaller than the sum of its proper divisors (1069054198).

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

1011243530 is a wasteful number, since it uses less digits than its factorization.

1011243530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1631.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1011243530 is about 31800.0555030962. The cubic root of 1011243530 is about 1003.7338840905.

Adding to 1011243530 its reverse (353421101), we get a palindrome (1364664631).

The spelling of 1011243530 in words is "one billion, eleven million, two hundred forty-three thousand, five hundred thirty".