1301042143 has 4 divisors (see below), whose sum is σ = 1307783488. Its totient is φ = 1294300800.

The previous prime is 1301042117. The next prime is 1301042153. The reversal of 1301042143 is 3412401031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3412401031 = 13 ⋅262492387.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1301042143 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1301042143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301042153) 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, 3370383 + ... + 3370768.

It is an arithmetic number, because the mean of its divisors is an integer number (326945872).

Almost surely, 2^1301042143 is an apocalyptic number.

1301042143 is a deficient number, since it is larger than the sum of its proper divisors (6741345).

1301042143 is an equidigital number, since it uses as much as digits as its factorization.

1301042143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6741344.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1301042143 is about 36069.9617826246. The cubic root of 1301042143 is about 1091.6844429740.

Adding to 1301042143 its reverse (3412401031), we get a palindrome (4713443174).

The spelling of 1301042143 in words is "one billion, three hundred one million, forty-two thousand, one hundred forty-three".