1242255001253 has 8 divisors (see below), whose sum is σ = 1481446958208. Its totient is φ = 1018494783504.

The previous prime is 1242255001219. The next prime is 1242255001321. The reversal of 1242255001253 is 3521005522421.

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 1242255001253 - 2¹⁶ = 1242254935717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242255001753) 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 7 ways as a sum of consecutive naturals, for example, 3857934626 + ... + 3857934947.

It is an arithmetic number, because the mean of its divisors is an integer number (185180869776).

Almost surely, 2^{1242255001253} is an apocalyptic number.

It is an amenable number.

1242255001253 is a deficient number, since it is larger than the sum of its proper divisors (239191956955).

1242255001253 is an equidigital number, since it uses as much as digits as its factorization.

1242255001253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7715869603.

The product of its (nonzero) digits is 24000, while the sum is 32.

The spelling of 1242255001253 in words is "one trillion, two hundred forty-two billion, two hundred fifty-five million, one thousand, two hundred fifty-three".