1213104345352 has 32 divisors (see below), whose sum is σ = 2290377375000. Its totient is φ = 602350668288.

The previous prime is 1213104345331. The next prime is 1213104345379. The reversal of 1213104345352 is 2535434013121.

It can be written as a sum of positive squares in 4 ways, for example, as 859429118916 + 353675226436 = 927054^2 + 594706^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138477 + ... + 1563772.

Almost surely, 2^{1213104345352} is an apocalyptic number.

It is an amenable number.

1213104345352 is a deficient number, since it is larger than the sum of its proper divisors (1077273029648).

1213104345352 is a wasteful number, since it uses less digits than its factorization.

1213104345352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1702873 (or 1702869 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

Adding to 1213104345352 its reverse (2535434013121), we get a palindrome (3748538358473).

The spelling of 1213104345352 in words is "one trillion, two hundred thirteen billion, one hundred four million, three hundred forty-five thousand, three hundred fifty-two".