1000313331023 has 4 divisors (see below), whose sum is σ = 1000386301728. Its totient is φ = 1000240360320.

The previous prime is 1000313331013. The next prime is 1000313331037. The reversal of 1000313331023 is 3201333130001.

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

It is a cyclic number.

It is not a de Polignac number, because 1000313331023 - 2¹² = 1000313326927 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1000313330986 and 1000313331004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000313331013) 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, 36464786 + ... + 36492207.

It is an arithmetic number, because the mean of its divisors is an integer number (250096575432).

Almost surely, 2^{1000313331023} is an apocalyptic number.

1000313331023 is a deficient number, since it is larger than the sum of its proper divisors (72970705).

1000313331023 is an equidigital number, since it uses as much as digits as its factorization.

1000313331023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72970704.

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 1000313331023 its reverse (3201333130001), we get a palindrome (4201646461024).

The spelling of 1000313331023 in words is "one trillion, three hundred thirteen million, three hundred thirty-one thousand, twenty-three".