1012313021323 has 4 divisors (see below), whose sum is σ = 1018760875120. Its totient is φ = 1005865167528.

The previous prime is 1012313021303. The next prime is 1012313021347. The reversal of 1012313021323 is 3231203132101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1012313021323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1012313021294 and 1012313021303.

It is not an unprimeable number, because it can be changed into a prime (1012313021303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3223926663 + ... + 3223926976.

It is an arithmetic number, because the mean of its divisors is an integer number (254690218780).

Almost surely, 2^{1012313021323} is an apocalyptic number.

1012313021323 is a deficient number, since it is larger than the sum of its proper divisors (6447853797).

1012313021323 is an equidigital number, since it uses as much as digits as its factorization.

1012313021323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6447853796.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 1012313021323 its reverse (3231203132101), we get a palindrome (4243516153424).

The spelling of 1012313021323 in words is "one trillion, twelve billion, three hundred thirteen million, twenty-one thousand, three hundred twenty-three".