2021313110312 has 8 divisors (see below), whose sum is σ = 3789962081850. Its totient is φ = 1010656555152.

The previous prime is 2021313110309. The next prime is 2021313110321. The reversal of 2021313110312 is 2130113131202.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1785499923076 + 235813187236 = 1336226^2 + 485606^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126332069387 + ... + 126332069402.

Almost surely, 2^{2021313110312} is an apocalyptic number.

It is an amenable number.

2021313110312 is a deficient number, since it is larger than the sum of its proper divisors (1768648971538).

2021313110312 is a wasteful number, since it uses less digits than its factorization.

2021313110312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252664138795 (or 252664138791 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 2021313110312 its reverse (2130113131202), we get a palindrome (4151426241514).

The spelling of 2021313110312 in words is "two trillion, twenty-one billion, three hundred thirteen million, one hundred ten thousand, three hundred twelve".