1011241243 has 4 divisors (see below), whose sum is σ = 1070726040. Its totient is φ = 951756448.

The previous prime is 1011241213. The next prime is 1011241247. The reversal of 1011241243 is 3421421101.

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 1011241243 - 2⁵ = 1011241211 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1011241243.

It is not an unprimeable number, because it can be changed into a prime (1011241247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29742373 + ... + 29742406.

It is an arithmetic number, because the mean of its divisors is an integer number (267681510).

Almost surely, 2^1011241243 is an apocalyptic number.

1011241243 is a deficient number, since it is larger than the sum of its proper divisors (59484797).

1011241243 is an equidigital number, since it uses as much as digits as its factorization.

1011241243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59484796.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1011241243 is about 31800.0195440192. The cubic root of 1011241243 is about 1003.7331274178.

Adding to 1011241243 its reverse (3421421101), we get a palindrome (4432662344).

The spelling of 1011241243 in words is "one billion, eleven million, two hundred forty-one thousand, two hundred forty-three".