1021331103312 has 80 divisors (see below), whose sum is σ = 2964934482048. Its totient is φ = 300592427520.

The previous prime is 1021331103277. The next prime is 1021331103421. The reversal of 1021331103312 is 2133011331201.

It is a happy number.

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, 35567139 + ... + 35595842.

Almost surely, 2^{1021331103312} is an apocalyptic number.

1021331103312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1021331103312 is an abundant number, since it is smaller than the sum of its proper divisors (1943603378736).

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

1021331103312 is a wasteful number, since it uses less digits than its factorization.

1021331103312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71163028 (or 71163022 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 1021331103312 its reverse (2133011331201), we get a palindrome (3154342434513).

The spelling of 1021331103312 in words is "one trillion, twenty-one billion, three hundred thirty-one million, one hundred three thousand, three hundred twelve".