1251352045253 has 8 divisors (see below), whose sum is σ = 1280255786880. Its totient is φ = 1222774899840.

The previous prime is 1251352045243. The next prime is 1251352045343. The reversal of 1251352045253 is 3525402531521.

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 1251352045253 - 2¹⁸ = 1251351783109 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1251352045243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81641303 + ... + 81656628.

It is an arithmetic number, because the mean of its divisors is an integer number (160031973360).

Almost surely, 2^{1251352045253} is an apocalyptic number.

It is an amenable number.

1251352045253 is a deficient number, since it is larger than the sum of its proper divisors (28903741627).

1251352045253 is an equidigital number, since it uses as much as digits as its factorization.

1251352045253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163298107.

The product of its (nonzero) digits is 180000, while the sum is 38.

Adding to 1251352045253 its reverse (3525402531521), we get a palindrome (4776754576774).

The spelling of 1251352045253 in words is "one trillion, two hundred fifty-one billion, three hundred fifty-two million, forty-five thousand, two hundred fifty-three".