1244340011 has 4 divisors (see below), whose sum is σ = 1246814352. Its totient is φ = 1241865672.

The previous prime is 1244339983. The next prime is 1244340073. The reversal of 1244340011 is 1100434421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1100434421 = 1877 ⋅586273.

It is a cyclic number.

It is not a de Polignac number, because 1244340011 - 2¹⁴ = 1244323627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1244340511) 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, 1236416 + ... + 1237421.

It is an arithmetic number, because the mean of its divisors is an integer number (311703588).

Almost surely, 2^1244340011 is an apocalyptic number.

1244340011 is a deficient number, since it is larger than the sum of its proper divisors (2474341).

1244340011 is an equidigital number, since it uses as much as digits as its factorization.

1244340011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2474340.

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

The square root of 1244340011 is about 35275.2039115297. The cubic root of 1244340011 is about 1075.5890079525.

Adding to 1244340011 its reverse (1100434421), we get a palindrome (2344774432).

The spelling of 1244340011 in words is "one billion, two hundred forty-four million, three hundred forty thousand, eleven".