1021343331012 has 24 divisors (see below), whose sum is σ = 2383163022912. Its totient is φ = 340443693600.

The previous prime is 1021343330993. The next prime is 1021343331013. The reversal of 1021343331012 is 2101333431201.

It is not an unprimeable number, because it can be changed into a prime (1021343331013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 634462 + ... + 1563722.

It is an arithmetic number, because the mean of its divisors is an integer number (99298459288).

Almost surely, 2^{1021343331012} is an apocalyptic number.

1021343331012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1021343331012 is an abundant number, since it is smaller than the sum of its proper divisors (1361819691900).

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

1021343331012 is a wasteful number, since it uses less digits than its factorization.

1021343331012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020859 (or 1020857 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 1021343331012 its reverse (2101333431201), we get a palindrome (3122676762213).

The spelling of 1021343331012 in words is "one trillion, twenty-one billion, three hundred forty-three million, three hundred thirty-one thousand, twelve".