1213534310412 has 24 divisors (see below), whose sum is σ = 2835876859200. Its totient is φ = 403897608016.

The previous prime is 1213534310369. The next prime is 1213534310431. The reversal of 1213534310412 is 2140134353121.

It is a self number, because there is not a number n which added to its sum of digits gives 1213534310412.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76720362 + ... + 76736177.

It is an arithmetic number, because the mean of its divisors is an integer number (118161535800).

Almost surely, 2^{1213534310412} is an apocalyptic number.

1213534310412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1213534310412 is an abundant number, since it is smaller than the sum of its proper divisors (1622342548788).

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

1213534310412 is a wasteful number, since it uses less digits than its factorization.

1213534310412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153457205 (or 153457203 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 1213534310412 its reverse (2140134353121), we get a palindrome (3353668663533).

The spelling of 1213534310412 in words is "one trillion, two hundred thirteen billion, five hundred thirty-four million, three hundred ten thousand, four hundred twelve".