1231133430344 has 64 divisors (see below), whose sum is σ = 2484259683840. Its totient is φ = 570877332480.

The previous prime is 1231133430337. The next prime is 1231133430377. The reversal of 1231133430344 is 4430343311321.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1231133430344.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 523937 + ... + 1654320.

It is an arithmetic number, because the mean of its divisors is an integer number (38816557560).

Almost surely, 2^{1231133430344} is an apocalyptic number.

It is an amenable number.

1231133430344 is an abundant number, since it is smaller than the sum of its proper divisors (1253126253496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1231133430344 is a wasteful number, since it uses less digits than its factorization.

1231133430344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2178390 (or 2178386 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 32.

Adding to 1231133430344 its reverse (4430343311321), we get a palindrome (5661476741665).

The spelling of 1231133430344 in words is "one trillion, two hundred thirty-one billion, one hundred thirty-three million, four hundred thirty thousand, three hundred forty-four".