1012311302200 has 96 divisors (see below), whose sum is σ = 2574865175760. Its totient is φ = 367070105600.

The previous prime is 1012311302147. The next prime is 1012311302231. The reversal of 1012311302200 is 22031132101.

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 23 ways as a sum of consecutive naturals, for example, 124842 + ... + 1428358.

Almost surely, 2^{1012311302200} is an apocalyptic number.

1012311302200 is a gapful number since it is divisible by the number (10) 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 1012311302200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1287432587880).

1012311302200 is an abundant number, since it is smaller than the sum of its proper divisors (1562553873560).

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

1012311302200 is a wasteful number, since it uses less digits than its factorization.

1012311302200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1303897 (or 1303888 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1012311302200 its reverse (22031132101), we get a palindrome (1034342434301).

The spelling of 1012311302200 in words is "one trillion, twelve billion, three hundred eleven million, three hundred two thousand, two hundred".