1020312301323 has 12 divisors (see below), whose sum is σ = 1582525202280. Its totient is φ = 583035600672.

The previous prime is 1020312301297. The next prime is 1020312301363. The reversal of 1020312301323 is 3231032130201.

It is not a de Polignac number, because 1020312301323 - 2¹⁰ = 1020312300299 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 1020312301323.

It is not an unprimeable number, because it can be changed into a prime (1020312301363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3470449858 + ... + 3470450151.

It is an arithmetic number, because the mean of its divisors is an integer number (131877100190).

Almost surely, 2^{1020312301323} is an apocalyptic number.

1020312301323 is a deficient number, since it is larger than the sum of its proper divisors (562212900957).

1020312301323 is an equidigital number, since it uses as much as digits as its factorization.

1020312301323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6940900026 (or 6940900019 counting only the distinct ones).

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

Adding to 1020312301323 its reverse (3231032130201), we get a palindrome (4251344431524).

The spelling of 1020312301323 in words is "one trillion, twenty billion, three hundred twelve million, three hundred one thousand, three hundred twenty-three".