1244103402011 has 4 divisors (see below), whose sum is σ = 1255517194800. Its totient is φ = 1232689609224.

The previous prime is 1244103401963. The next prime is 1244103402023. The reversal of 1244103402011 is 1102043014421.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1244103402011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1244103402611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5706896231 + ... + 5706896448.

It is an arithmetic number, because the mean of its divisors is an integer number (313879298700).

Almost surely, 2^{1244103402011} is an apocalyptic number.

1244103402011 is a deficient number, since it is larger than the sum of its proper divisors (11413792789).

1244103402011 is a wasteful number, since it uses less digits than its factorization.

1244103402011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11413792788.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 1244103402011 its reverse (1102043014421), we get a palindrome (2346146416432).

The spelling of 1244103402011 in words is "one trillion, two hundred forty-four billion, one hundred three million, four hundred two thousand, eleven".