1234442444313 has 16 divisors (see below), whose sum is σ = 1781716858880. Its totient is φ = 755720838144.

The previous prime is 1234442444309. The next prime is 1234442444413. The reversal of 1234442444313 is 3134442444321.

It is a happy number.

It is not a de Polignac number, because 1234442444313 - 2² = 1234442444309 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1234442444113) 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, 81993433 + ... + 82008486.

It is an arithmetic number, because the mean of its divisors is an integer number (111357303680).

Almost surely, 2^{1234442444313} is an apocalyptic number.

1234442444313 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1234442444313 is a deficient number, since it is larger than the sum of its proper divisors (547274414567).

1234442444313 is a wasteful number, since it uses less digits than its factorization.

1234442444313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164002128.

The product of its digits is 442368, while the sum is 39.

Adding to 1234442444313 its reverse (3134442444321), we get a palindrome (4368884888634).

The spelling of 1234442444313 in words is "one trillion, two hundred thirty-four billion, four hundred forty-two million, four hundred forty-four thousand, three hundred thirteen".