1213231340304 has 60 divisors (see below), whose sum is σ = 3452911254000. Its totient is φ = 397556029632.

The previous prime is 1213231340303. The next prime is 1213231340339. The reversal of 1213231340304 is 4030431323121.

It is a happy number.

1213231340304 is a `hidden beast` number, since 1 + 2 + 1 + 3 + 2 + 313 + 40 + 304 = 666.

It is not an unprimeable number, because it can be changed into a prime (1213231340303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71391654 + ... + 71408645.

It is an arithmetic number, because the mean of its divisors is an integer number (57548520900).

Almost surely, 2^{1213231340304} is an apocalyptic number.

It is an amenable number.

1213231340304 is an abundant number, since it is smaller than the sum of its proper divisors (2239679913696).

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

1213231340304 is a wasteful number, since it uses less digits than its factorization.

1213231340304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142800372 (or 142800363 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 1213231340304 its reverse (4030431323121), we get a palindrome (5243662663425).

The spelling of 1213231340304 in words is "one trillion, two hundred thirteen billion, two hundred thirty-one million, three hundred forty thousand, three hundred four".