1253303522101 has 4 divisors (see below), whose sum is σ = 1253665020672. Its totient is φ = 1252942023532.

The previous prime is 1253303522089. The next prime is 1253303522137. The reversal of 1253303522101 is 1012253033521.

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 1253303522101 - 2⁷ = 1253303521973 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1253303522101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253303522501) 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, 180744085 + ... + 180751018.

It is an arithmetic number, because the mean of its divisors is an integer number (313416255168).

Almost surely, 2^{1253303522101} is an apocalyptic number.

It is an amenable number.

1253303522101 is a deficient number, since it is larger than the sum of its proper divisors (361498571).

1253303522101 is an equidigital number, since it uses as much as digits as its factorization.

1253303522101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361498570.

The product of its (nonzero) digits is 5400, while the sum is 28.

Adding to 1253303522101 its reverse (1012253033521), we get a palindrome (2265556555622).

The spelling of 1253303522101 in words is "one trillion, two hundred fifty-three billion, three hundred three million, five hundred twenty-two thousand, one hundred one".