1231430344552 has 16 divisors (see below), whose sum is σ = 2308945988160. Its totient is φ = 615711414384.

The previous prime is 1231430344523. The next prime is 1231430344553. The reversal of 1231430344552 is 2554430341321.

It is not an unprimeable number, because it can be changed into a prime (1231430344553) 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, 1327393 + ... + 2055439.

It is an arithmetic number, because the mean of its divisors is an integer number (144309124260).

Almost surely, 2^{1231430344552} is an apocalyptic number.

It is an amenable number.

1231430344552 is a deficient number, since it is larger than the sum of its proper divisors (1077515643608).

1231430344552 is a wasteful number, since it uses less digits than its factorization.

1231430344552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 939480 (or 939476 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 37.

Adding to 1231430344552 its reverse (2554430341321), we get a palindrome (3785860685873).

The spelling of 1231430344552 in words is "one trillion, two hundred thirty-one billion, four hundred thirty million, three hundred forty-four thousand, five hundred fifty-two".