1300001023043 has 4 divisors (see below), whose sum is σ = 1300003484208. Its totient is φ = 1299998561880.

The previous prime is 1300001023039. The next prime is 1300001023067. The reversal of 1300001023043 is 3403201000031.

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 1300001023043 - 2² = 1300001023039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1300001023093) 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, 79148 + ... + 1614393.

It is an arithmetic number, because the mean of its divisors is an integer number (325000871052).

Almost surely, 2^{1300001023043} is an apocalyptic number.

1300001023043 is a deficient number, since it is larger than the sum of its proper divisors (2461165).

1300001023043 is an equidigital number, since it uses as much as digits as its factorization.

1300001023043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2461164.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 1300001023043 its reverse (3403201000031), we get a palindrome (4703202023074).

The spelling of 1300001023043 in words is "one trillion, three hundred billion, one million, twenty-three thousand, forty-three".