1143242104253 has 4 divisors (see below), whose sum is σ = 1145251317660. Its totient is φ = 1141232890848.

The previous prime is 1143242104247. The next prime is 1143242104259. The reversal of 1143242104253 is 3524012423411.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1143242104247) and next prime (1143242104259).

It can be written as a sum of positive squares in 2 ways, for example, as 93277100569 + 1049965003684 = 305413^2 + 1024678^2 .

It is a cyclic number.

It is not a de Polignac number, because 1143242104253 - 2²² = 1143237909949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143242104259) 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, 1004605850 + ... + 1004606987.

It is an arithmetic number, because the mean of its divisors is an integer number (286312829415).

Almost surely, 2^{1143242104253} is an apocalyptic number.

It is an amenable number.

1143242104253 is a deficient number, since it is larger than the sum of its proper divisors (2009213407).

1143242104253 is an equidigital number, since it uses as much as digits as its factorization.

1143242104253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2009213406.

The product of its (nonzero) digits is 23040, while the sum is 32.

Adding to 1143242104253 its reverse (3524012423411), we get a palindrome (4667254527664).

The spelling of 1143242104253 in words is "one trillion, one hundred forty-three billion, two hundred forty-two million, one hundred four thousand, two hundred fifty-three".