1011242243 has 4 divisors (see below), whose sum is σ = 1103173368. Its totient is φ = 919311120.

The previous prime is 1011242233. The next prime is 1011242249. The reversal of 1011242243 is 3422421101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1011242243 - 2⁶ = 1011242179 is a prime.

It is a super-2 number, since 2×1011242243² = 2045221748055342098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1011242249) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 45965546 + ... + 45965567.

It is an arithmetic number, because the mean of its divisors is an integer number (275793342).

Almost surely, 2^1011242243 is an apocalyptic number.

1011242243 is a deficient number, since it is larger than the sum of its proper divisors (91931125).

1011242243 is an equidigital number, since it uses as much as digits as its factorization.

1011242243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91931124.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1011242243 is about 31800.0352672760. The cubic root of 1011242243 is about 1003.7334582761.

Adding to 1011242243 its reverse (3422421101), we get a palindrome (4433663344).

The spelling of 1011242243 in words is "one billion, eleven million, two hundred forty-two thousand, two hundred forty-three".