1023304021243 has 8 divisors (see below), whose sum is σ = 1201098156512. Its totient is φ = 853411847616.

The previous prime is 1023304021231. The next prime is 1023304021343. The reversal of 1023304021243 is 3421204033201.

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 1023304021243 - 2²¹ = 1023301924091 is a prime.

It is a super-2 number, since 2×1023304021243² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1023304021343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1975490130 + ... + 1975490647.

It is an arithmetic number, because the mean of its divisors is an integer number (150137269564).

Almost surely, 2^{1023304021243} is an apocalyptic number.

1023304021243 is a deficient number, since it is larger than the sum of its proper divisors (177794135269).

1023304021243 is an equidigital number, since it uses as much as digits as its factorization.

1023304021243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3950980821.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 1023304021243 its reverse (3421204033201), we get a palindrome (4444508054444).

The spelling of 1023304021243 in words is "one trillion, twenty-three billion, three hundred four million, twenty-one thousand, two hundred forty-three".