1011821242 has 8 divisors (see below), whose sum is σ = 1534785300. Its totient is φ = 500226144.

The previous prime is 1011821233. The next prime is 1011821263. The reversal of 1011821242 is 2421281101.

It can be written as a sum of positive squares in 2 ways, for example, as 927750681 + 84070561 = 30459^2 + 9169^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2842017 + ... + 2842372.

Almost surely, 2^1011821242 is an apocalyptic number.

1011821242 is a deficient number, since it is larger than the sum of its proper divisors (522964058).

1011821242 is an equidigital number, since it uses as much as digits as its factorization.

1011821242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5684480.

The product of its (nonzero) digits is 256, while the sum is 22.

The square root of 1011821242 is about 31809.1377122990. The cubic root of 1011821242 is about 1003.9249883112.

The spelling of 1011821242 in words is "one billion, eleven million, eight hundred twenty-one thousand, two hundred forty-two".