1231130141443 has 4 divisors (see below), whose sum is σ = 1231882207920. Its totient is φ = 1230378074968.

The previous prime is 1231130141407. The next prime is 1231130141447. The reversal of 1231130141443 is 3441410311321.

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 1231130141443 - 2⁹ = 1231130140931 is a prime.

It is a super-2 number, since 2×1231130141443² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1231130141447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 376030783 + ... + 376034056.

It is an arithmetic number, because the mean of its divisors is an integer number (307970551980).

Almost surely, 2^{1231130141443} is an apocalyptic number.

1231130141443 is a deficient number, since it is larger than the sum of its proper divisors (752066477).

1231130141443 is an equidigital number, since it uses as much as digits as its factorization.

1231130141443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752066476.

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 1231130141443 its reverse (3441410311321), we get a palindrome (4672540452764).

The spelling of 1231130141443 in words is "one trillion, two hundred thirty-one billion, one hundred thirty million, one hundred forty-one thousand, four hundred forty-three".