1311224231004 has 48 divisors (see below), whose sum is σ = 3111107704320. Its totient is φ = 429751445760.

The previous prime is 1311224230949. The next prime is 1311224231099. The reversal of 1311224231004 is 4001324221131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2641134 + ... + 3098069.

It is an arithmetic number, because the mean of its divisors is an integer number (64814743840).

Almost surely, 2^{1311224231004} is an apocalyptic number.

It is an amenable number.

1311224231004 is an abundant number, since it is smaller than the sum of its proper divisors (1799883473316).

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

1311224231004 is a wasteful number, since it uses less digits than its factorization.

1311224231004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5739530 (or 5739528 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 1311224231004 its reverse (4001324221131), we get a palindrome (5312548452135).

The spelling of 1311224231004 in words is "one trillion, three hundred eleven billion, two hundred twenty-four million, two hundred thirty-one thousand, four".