1031302021312 has 56 divisors (see below), whose sum is σ = 2085392655216. Its totient is φ = 505851460608.

The previous prime is 1031302021303. The next prime is 1031302021313. The reversal of 1031302021312 is 2131202031301.

It is a self number, because there is not a number n which added to its sum of digits gives 1031302021312.

It is not an unprimeable number, because it can be changed into a prime (1031302021313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31200058 + ... + 31233094.

Almost surely, 2^{1031302021312} is an apocalyptic number.

It is an amenable number.

1031302021312 is an abundant number, since it is smaller than the sum of its proper divisors (1054090633904).

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

1031302021312 is an equidigital number, since it uses as much as digits as its factorization.

1031302021312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42305 (or 42295 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1031302021312 its reverse (2131202031301), we get a palindrome (3162504052613).

The spelling of 1031302021312 in words is "one trillion, thirty-one billion, three hundred two million, twenty-one thousand, three hundred twelve".