1023305132045 has 12 divisors (see below), whose sum is σ = 1428450429564. Its totient is φ = 701694947520.

The previous prime is 1023305132021. The next prime is 1023305132051. The reversal of 1023305132045 is 5402315033201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 114306876649 + 908998255396 = 338093^2 + 953414^2 .

It is not a de Polignac number, because 1023305132045 - 2²² = 1023300937741 is a prime.

It is a super-4 number, since 4×1023305132045⁴ (a number of 49 digits) contains 4444 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1023305131999 and 1023305132017.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2088377576 + ... + 2088378065.

It is an arithmetic number, because the mean of its divisors is an integer number (119037535797).

Almost surely, 2^{1023305132045} is an apocalyptic number.

It is an amenable number.

1023305132045 is a deficient number, since it is larger than the sum of its proper divisors (405145297519).

1023305132045 is an equidigital number, since it uses as much as digits as its factorization.

1023305132045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4176755660 (or 4176755653 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 29.

The spelling of 1023305132045 in words is "one trillion, twenty-three billion, three hundred five million, one hundred thirty-two thousand, forty-five".