1231204324413 has 16 divisors (see below), whose sum is σ = 1986480927360. Its totient is φ = 662160308736.

The previous prime is 1231204324411. The next prime is 1231204324417. The reversal of 1231204324413 is 3144234021321.

It is not a de Polignac number, because 1231204324413 - 2¹ = 1231204324411 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231204324411) 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 15 ways as a sum of consecutive naturals, for example, 1724375448 + ... + 1724376161.

It is an arithmetic number, because the mean of its divisors is an integer number (124155057960).

Almost surely, 2^{1231204324413} is an apocalyptic number.

It is an amenable number.

1231204324413 is a deficient number, since it is larger than the sum of its proper divisors (755276602947).

1231204324413 is a wasteful number, since it uses less digits than its factorization.

1231204324413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3448751636.

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 1231204324413 its reverse (3144234021321), we get a palindrome (4375438345734).

The spelling of 1231204324413 in words is "one trillion, two hundred thirty-one billion, two hundred four million, three hundred twenty-four thousand, four hundred thirteen".