1244220100323 has 16 divisors (see below), whose sum is σ = 1777875023616. Its totient is φ = 771972046560.

The previous prime is 1244220100313. The next prime is 1244220100337. The reversal of 1244220100323 is 3230010224421.

It is a happy number.

It is not a de Polignac number, because 1244220100323 - 2¹⁰ = 1244220099299 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1244220100293 and 1244220100302.

It is not an unprimeable number, because it can be changed into a prime (1244220100313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 243675493 + ... + 243680598.

It is an arithmetic number, because the mean of its divisors is an integer number (111117188976).

Almost surely, 2^{1244220100323} is an apocalyptic number.

1244220100323 is a deficient number, since it is larger than the sum of its proper divisors (533654923293).

1244220100323 is a wasteful number, since it uses less digits than its factorization.

1244220100323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487356154.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 1244220100323 its reverse (3230010224421), we get a palindrome (4474230324744).

The spelling of 1244220100323 in words is "one trillion, two hundred forty-four billion, two hundred twenty million, one hundred thousand, three hundred twenty-three".