1017273318012 has 240 divisors, whose sum is σ = 3210565290240. Its totient is φ = 274375911168.

The previous prime is 1017273318001. The next prime is 1017273318029. The reversal of 1017273318012 is 2108133727101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 12153328 + ... + 12236744.

It is an arithmetic number, because the mean of its divisors is an integer number (13377355376).

Almost surely, 2^{1017273318012} is an apocalyptic number.

1017273318012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1017273318012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1605282645120).

1017273318012 is an abundant number, since it is smaller than the sum of its proper divisors (2193291972228).

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

1017273318012 is a wasteful number, since it uses less digits than its factorization.

1017273318012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83742 (or 83731 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The spelling of 1017273318012 in words is "one trillion, seventeen billion, two hundred seventy-three million, three hundred eighteen thousand, twelve".