1065243143253 has 4 divisors (see below), whose sum is σ = 1420324191008. Its totient is φ = 710162095500.

The previous prime is 1065243143231. The next prime is 1065243143257. The reversal of 1065243143253 is 3523413425601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1065243143253 - 2⁹ = 1065243142741 is a prime.

It is a super-2 number, since 2×1065243143253² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1065243143257) 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, 177540523873 + ... + 177540523878.

It is an arithmetic number, because the mean of its divisors is an integer number (355081047752).

Almost surely, 2^{1065243143253} is an apocalyptic number.

It is an amenable number.

1065243143253 is a deficient number, since it is larger than the sum of its proper divisors (355081047755).

1065243143253 is an equidigital number, since it uses as much as digits as its factorization.

1065243143253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355081047754.

The product of its (nonzero) digits is 259200, while the sum is 39.

Adding to 1065243143253 its reverse (3523413425601), we get a palindrome (4588656568854).

The spelling of 1065243143253 in words is "one trillion, sixty-five billion, two hundred forty-three million, one hundred forty-three thousand, two hundred fifty-three".