1311442423003 has 4 divisors (see below), whose sum is σ = 1311837082488. Its totient is φ = 1311047763520.

The previous prime is 1311442422907. The next prime is 1311442423013. The reversal of 1311442423003 is 3003242441131.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1311442423003 - 2²⁵ = 1311408868571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1311442423013) 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, 197324758 + ... + 197331403.

It is an arithmetic number, because the mean of its divisors is an integer number (327959270622).

Almost surely, 2^{1311442423003} is an apocalyptic number.

1311442423003 is a deficient number, since it is larger than the sum of its proper divisors (394659485).

1311442423003 is an equidigital number, since it uses as much as digits as its factorization.

1311442423003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394659484.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 1311442423003 its reverse (3003242441131), we get a palindrome (4314684864134).

The spelling of 1311442423003 in words is "one trillion, three hundred eleven billion, four hundred forty-two million, four hundred twenty-three thousand, three".