1021432013312 has 80 divisors (see below), whose sum is σ = 2151029036640. Its totient is φ = 483217809408.

The previous prime is 1021432013299. The next prime is 1021432013323. The reversal of 1021432013312 is 2133102341201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7589228 + ... + 7722644.

It is an arithmetic number, because the mean of its divisors is an integer number (26887862958).

Almost surely, 2^{1021432013312} 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 1021432013312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1075514518320).

1021432013312 is an abundant number, since it is smaller than the sum of its proper divisors (1129597023328).

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

1021432013312 is an equidigital number, since it uses as much as digits as its factorization.

1021432013312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134241 (or 134225 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1021432013312 its reverse (2133102341201), we get a palindrome (3154534354513).

The spelling of 1021432013312 in words is "one trillion, twenty-one billion, four hundred thirty-two million, thirteen thousand, three hundred twelve".