1255123035253 has 4 divisors (see below), whose sum is σ = 1256544466528. Its totient is φ = 1253701603980.

The previous prime is 1255123035251. The next prime is 1255123035359. The reversal of 1255123035253 is 3525303215521.

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 a cyclic number.

It is not a de Polignac number, because 1255123035253 - 2¹ = 1255123035251 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 (1255123035251) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 710714313 + ... + 710716078.

It is an arithmetic number, because the mean of its divisors is an integer number (314136116632).

Almost surely, 2^{1255123035253} is an apocalyptic number.

It is an amenable number.

1255123035253 is a deficient number, since it is larger than the sum of its proper divisors (1421431275).

1255123035253 is an equidigital number, since it uses as much as digits as its factorization.

1255123035253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1421431274.

The product of its (nonzero) digits is 135000, while the sum is 37.

The spelling of 1255123035253 in words is "one trillion, two hundred fifty-five billion, one hundred twenty-three million, thirty-five thousand, two hundred fifty-three".