203038242745 has 8 divisors (see below), whose sum is σ = 262387883016. Its totient is φ = 149935933056.

The previous prime is 203038242739. The next prime is 203038242779. The reversal of 203038242745 is 547242830302.

It can be written as a sum of positive squares in 4 ways, for example, as 27906036601 + 175132206144 = 167051^2 + 418488^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 203038242745 - 2²¹ = 203036145593 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203038242698 and 203038242707.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1561832572 + ... + 1561832701.

It is an arithmetic number, because the mean of its divisors is an integer number (32798485377).

Almost surely, 2^203038242745 is an apocalyptic number.

It is an amenable number.

203038242745 is a deficient number, since it is larger than the sum of its proper divisors (59349640271).

203038242745 is a wasteful number, since it uses less digits than its factorization.

203038242745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3123665291.

The product of its (nonzero) digits is 322560, while the sum is 40.

The spelling of 203038242745 in words is "two hundred three billion, thirty-eight million, two hundred forty-two thousand, seven hundred forty-five".