203553453242051 has 8 divisors (see below), whose sum is σ = 222922352757744. Its totient is φ = 184328560414720.

The previous prime is 203553453242021. The next prime is 203553453242059. The reversal of 203553453242051 is 150242354355302.

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 203553453242051 - 2²² = 203553449047747 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203553453241993 and 203553453242011.

It is not an unprimeable number, because it can be changed into a prime (203553453242059) 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, 36001669130 + ... + 36001674783.

It is an arithmetic number, because the mean of its divisors is an integer number (27865294094718).

Almost surely, 2^{203553453242051} is an apocalyptic number.

203553453242051 is a deficient number, since it is larger than the sum of its proper divisors (19368899515693).

203553453242051 is a wasteful number, since it uses less digits than its factorization.

203553453242051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72003344181.

The product of its (nonzero) digits is 2160000, while the sum is 44.

The spelling of 203553453242051 in words is "two hundred three trillion, five hundred fifty-three billion, four hundred fifty-three million, two hundred forty-two thousand, fifty-one".