1241153553251 has 4 divisors (see below), whose sum is σ = 1248767992392. Its totient is φ = 1233539114112.

The previous prime is 1241153553239. The next prime is 1241153553257. The reversal of 1241153553251 is 1523553511421.

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

It is a cyclic number.

It is not a de Polignac number, because 1241153553251 - 2⁶ = 1241153553187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1241153553257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3807219326 + ... + 3807219651.

It is an arithmetic number, because the mean of its divisors is an integer number (312191998098).

Almost surely, 2^{1241153553251} is an apocalyptic number.

1241153553251 is a deficient number, since it is larger than the sum of its proper divisors (7614439141).

1241153553251 is an equidigital number, since it uses as much as digits as its factorization.

1241153553251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7614439140.

The product of its digits is 90000, while the sum is 38.

The spelling of 1241153553251 in words is "one trillion, two hundred forty-one billion, one hundred fifty-three million, five hundred fifty-three thousand, two hundred fifty-one".