1231433225043 has 48 divisors (see below), whose sum is σ = 1943720064000. Its totient is φ = 691261693248.

The previous prime is 1231433225041. The next prime is 1231433225083. The reversal of 1231433225043 is 3405223341321.

It is not a de Polignac number, because 1231433225043 - 2¹ = 1231433225041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1231433224995 and 1231433225013.

It is not an unprimeable number, because it can be changed into a prime (1231433225041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12431113 + ... + 12529781.

It is an arithmetic number, because the mean of its divisors is an integer number (40494168000).

Almost surely, 2^{1231433225043} is an apocalyptic number.

1231433225043 is a deficient number, since it is larger than the sum of its proper divisors (712286838957).

1231433225043 is a wasteful number, since it uses less digits than its factorization.

1231433225043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100184 (or 100177 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 33.

Adding to 1231433225043 its reverse (3405223341321), we get a palindrome (4636656566364).

The spelling of 1231433225043 in words is "one trillion, two hundred thirty-one billion, four hundred thirty-three million, two hundred twenty-five thousand, forty-three".