1231143000013 has 16 divisors (see below), whose sum is σ = 1319567500800. Its totient is φ = 1146068360640.

The previous prime is 1231143000011. The next prime is 1231143000089. The reversal of 1231143000013 is 3100003411321.

It is a cyclic number.

It is not a de Polignac number, because 1231143000013 - 2¹ = 1231143000011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231143000011) 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, 2303631 + ... + 2787292.

It is an arithmetic number, because the mean of its divisors is an integer number (82472968800).

Almost surely, 2^{1231143000013} is an apocalyptic number.

It is an amenable number.

1231143000013 is a deficient number, since it is larger than the sum of its proper divisors (88424500787).

1231143000013 is a wasteful number, since it uses less digits than its factorization.

1231143000013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5091252.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1231143000013 its reverse (3100003411321), we get a palindrome (4331146411334).

The spelling of 1231143000013 in words is "one trillion, two hundred thirty-one billion, one hundred forty-three million, thirteen", and thus it is an aban number.