1021312300323 has 32 divisors (see below), whose sum is σ = 1580315996160. Its totient is φ = 574604411040.

The previous prime is 1021312300313. The next prime is 1021312300331. The reversal of 1021312300323 is 3230032131201.

It is not a de Polignac number, because 1021312300323 - 2¹⁸ = 1021312038179 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 1021312300323.

It is not an unprimeable number, because it can be changed into a prime (1021312300313) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2601058 + ... + 2967848.

It is an arithmetic number, because the mean of its divisors is an integer number (49384874880).

Almost surely, 2^{1021312300323} is an apocalyptic number.

1021312300323 is a deficient number, since it is larger than the sum of its proper divisors (559003695837).

1021312300323 is a wasteful number, since it uses less digits than its factorization.

1021312300323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368847.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 1021312300323 its reverse (3230032131201), we get a palindrome (4251344431524).

The spelling of 1021312300323 in words is "one trillion, twenty-one billion, three hundred twelve million, three hundred thousand, three hundred twenty-three".