1021332120312 has 64 divisors (see below), whose sum is σ = 2918191680000. Its totient is φ = 291799186560.

The previous prime is 1021332120301. The next prime is 1021332120329. The reversal of 1021332120312 is 2130212331201.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5817189 + ... + 5990187.

It is an arithmetic number, because the mean of its divisors is an integer number (45596745000).

Almost surely, 2^{1021332120312} is an apocalyptic number.

1021332120312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1021332120312 is an abundant number, since it is smaller than the sum of its proper divisors (1896859559688).

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

1021332120312 is a wasteful number, since it uses less digits than its factorization.

1021332120312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208156 (or 208152 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1021332120312 its reverse (2130212331201), we get a palindrome (3151544451513).

The spelling of 1021332120312 in words is "one trillion, twenty-one billion, three hundred thirty-two million, one hundred twenty thousand, three hundred twelve".