1253003521051 has 8 divisors (see below), whose sum is σ = 1293462580608. Its totient is φ = 1212546936000.

The previous prime is 1253003520953. The next prime is 1253003521093. The reversal of 1253003521051 is 1501253003521.

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 1253003521051 - 2²⁹ = 1252466650139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1253003525051) 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, 439191 + ... + 1642831.

It is an arithmetic number, because the mean of its divisors is an integer number (161682822576).

Almost surely, 2^{1253003521051} is an apocalyptic number.

1253003521051 is a deficient number, since it is larger than the sum of its proper divisors (40459059557).

1253003521051 is a wasteful number, since it uses less digits than its factorization.

1253003521051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1237253.

The product of its (nonzero) digits is 4500, while the sum is 28.

Adding to 1253003521051 its reverse (1501253003521), we get a palindrome (2754256524572).

The spelling of 1253003521051 in words is "one trillion, two hundred fifty-three billion, three million, five hundred twenty-one thousand, fifty-one".