1023204515315 has 8 divisors (see below), whose sum is σ = 1227971551920. Its totient is φ = 818479523232.

The previous prime is 1023204515243. The next prime is 1023204515327. The reversal of 1023204515315 is 5135154023201.

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 1023204515315 - 2²⁰ = 1023203466739 is a prime.

It is a super-2 number, since 2×1023204515315² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10457564 + ... + 10554953.

It is an arithmetic number, because the mean of its divisors is an integer number (153496443990).

Almost surely, 2^{1023204515315} is an apocalyptic number.

1023204515315 is a deficient number, since it is larger than the sum of its proper divisors (204767036605).

1023204515315 is an equidigital number, since it uses as much as digits as its factorization.

1023204515315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21022261.

The product of its (nonzero) digits is 18000, while the sum is 32.

Adding to 1023204515315 its reverse (5135154023201), we get a palindrome (6158358538516).

The spelling of 1023204515315 in words is "one trillion, twenty-three billion, two hundred four million, five hundred fifteen thousand, three hundred fifteen".