1213054015012 has 36 divisors (see below), whose sum is σ = 2516024454300. Its totient is φ = 510071225664.

The previous prime is 1213054014929. The next prime is 1213054015051. The reversal of 1213054015012 is 2105104503121.

It can be written as a sum of positive squares in 2 ways, for example, as 857427848676 + 355626166336 = 925974^2 + 596344^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58376887 + ... + 58397662.

It is an arithmetic number, because the mean of its divisors is an integer number (69889568175).

Almost surely, 2^{1213054015012} is an apocalyptic number.

It is an amenable number.

1213054015012 is an abundant number, since it is smaller than the sum of its proper divisors (1302970439288).

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

1213054015012 is a wasteful number, since it uses less digits than its factorization.

1213054015012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116774620 (or 116774611 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 1213054015012 its reverse (2105104503121), we get a palindrome (3318158518133).

The spelling of 1213054015012 in words is "one trillion, two hundred thirteen billion, fifty-four million, fifteen thousand, twelve".