203215242643053 has 4 divisors (see below), whose sum is σ = 270953656857408. Its totient is φ = 135476828428700.

The previous prime is 203215242642953. The next prime is 203215242643073. The reversal of 203215242643053 is 350346242512302.

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 203215242643053 - 2²⁵ = 203215209088621 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 203215242642996 and 203215242643014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203215242643073) 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, 33869207107173 + ... + 33869207107178.

It is an arithmetic number, because the mean of its divisors is an integer number (67738414214352).

Almost surely, 2^{203215242643053} is an apocalyptic number.

It is an amenable number.

203215242643053 is a deficient number, since it is larger than the sum of its proper divisors (67738414214355).

203215242643053 is an equidigital number, since it uses as much as digits as its factorization.

203215242643053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67738414214354.

The product of its (nonzero) digits is 1036800, while the sum is 42.

The spelling of 203215242643053 in words is "two hundred three trillion, two hundred fifteen billion, two hundred forty-two million, six hundred forty-three thousand, fifty-three".