1213554324404 has 12 divisors (see below), whose sum is σ = 2125986584484. Its totient is φ = 606129585984.

The previous prime is 1213554324403. The next prime is 1213554324467. The reversal of 1213554324404 is 4044234553121.

It can be written as a sum of positive squares in 2 ways, for example, as 218145043600 + 995409280804 = 467060^2 + 997702^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213554324403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161889839 + ... + 161897334.

It is an arithmetic number, because the mean of its divisors is an integer number (177165548707).

Almost surely, 2^{1213554324404} is an apocalyptic number.

It is an amenable number.

1213554324404 is a deficient number, since it is larger than the sum of its proper divisors (912432260080).

1213554324404 is a wasteful number, since it uses less digits than its factorization.

1213554324404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323788114 (or 323788112 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 38.

Adding to 1213554324404 its reverse (4044234553121), we get a palindrome (5257788877525).

The spelling of 1213554324404 in words is "one trillion, two hundred thirteen billion, five hundred fifty-four million, three hundred twenty-four thousand, four hundred four".