1021351305112 has 96 divisors (see below), whose sum is σ = 2151243774720. Its totient is φ = 452951147520.

The previous prime is 1021351305053. The next prime is 1021351305133. The reversal of 1021351305112 is 2115031531201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9322878 + ... + 9431794.

It is an arithmetic number, because the mean of its divisors is an integer number (22408789320).

Almost surely, 2^{1021351305112} is an apocalyptic number.

It is an amenable number.

1021351305112 is an abundant number, since it is smaller than the sum of its proper divisors (1129892469608).

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

1021351305112 is a wasteful number, since it uses less digits than its factorization.

1021351305112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109169 (or 109146 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 25.

Adding to 1021351305112 its reverse (2115031531201), we get a palindrome (3136382836313).

The spelling of 1021351305112 in words is "one trillion, twenty-one billion, three hundred fifty-one million, three hundred five thousand, one hundred twelve".