1243013241 has 8 divisors (see below), whose sum is σ = 1657513984. Its totient is φ = 828594000.

The previous prime is 1243013227. The next prime is 1243013251. The reversal of 1243013241 is 1423103421.

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

It is not a de Polignac number, because 1243013241 - 2⁵ = 1243013209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1243013251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47880 + ... + 69126.

It is an arithmetic number, because the mean of its divisors is an integer number (207189248).

Almost surely, 2^1243013241 is an apocalyptic number.

It is an amenable number.

1243013241 is a deficient number, since it is larger than the sum of its proper divisors (414500743).

1243013241 is a wasteful number, since it uses less digits than its factorization.

1243013241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40751.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1243013241 is about 35256.3929096554. The cubic root of 1243013241 is about 1075.2065919156.

Adding to 1243013241 its reverse (1423103421), we get a palindrome (2666116662).

The spelling of 1243013241 in words is "one billion, two hundred forty-three million, thirteen thousand, two hundred forty-one".