1213712928512 has 288 divisors, whose sum is σ = 2950455459840. Its totient is φ = 487377285120.

The previous prime is 1213712928487. The next prime is 1213712928559. The reversal of 1213712928512 is 2158292173121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 219594293 + ... + 219599819.

Almost surely, 2^{1213712928512} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1213712928512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1475227729920).

1213712928512 is an abundant number, since it is smaller than the sum of its proper divisors (1736742531328).

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

1213712928512 is an equidigital number, since it uses as much as digits as its factorization.

1213712928512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5707 (or 5693 counting only the distinct ones).

The product of its digits is 120960, while the sum is 44.

The spelling of 1213712928512 in words is "one trillion, two hundred thirteen billion, seven hundred twelve million, nine hundred twenty-eight thousand, five hundred twelve".