1231530344504 has 32 divisors (see below), whose sum is σ = 2337419280000. Its totient is φ = 608263061472.

The previous prime is 1231530344503. The next prime is 1231530344509. The reversal of 1231530344504 is 4054430351321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231530344503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2561354 + ... + 3003929.

It is an arithmetic number, because the mean of its divisors is an integer number (73044352500).

Almost surely, 2^{1231530344504} is an apocalyptic number.

It is an amenable number.

1231530344504 is a deficient number, since it is larger than the sum of its proper divisors (1105888935496).

1231530344504 is a wasteful number, since it uses less digits than its factorization.

1231530344504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5565627 (or 5565623 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 35.

Adding to 1231530344504 its reverse (4054430351321), we get a palindrome (5285960695825).

The spelling of 1231530344504 in words is "one trillion, two hundred thirty-one billion, five hundred thirty million, three hundred forty-four thousand, five hundred four".