1023231204305 has 8 divisors (see below), whose sum is σ = 1229757812712. Its totient is φ = 817331385088.

The previous prime is 1023231204301. The next prime is 1023231204337. The reversal of 1023231204305 is 5034021323201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 22335003601 + 1000896200704 = 149449^2 + 1000448^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1023231204305 - 2² = 1023231204301 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1023231204301) 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 7 ways as a sum of consecutive naturals, for example, 156693704 + ... + 156700233.

It is an arithmetic number, because the mean of its divisors is an integer number (153719726589).

Almost surely, 2^{1023231204305} is an apocalyptic number.

It is an amenable number.

1023231204305 is a deficient number, since it is larger than the sum of its proper divisors (206526608407).

1023231204305 is an equidigital number, since it uses as much as digits as its factorization.

1023231204305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313394595.

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 1023231204305 its reverse (5034021323201), we get a palindrome (6057252527506).

The spelling of 1023231204305 in words is "one trillion, twenty-three billion, two hundred thirty-one million, two hundred four thousand, three hundred five".