203425044406 has 4 divisors (see below), whose sum is σ = 305137566612. Its totient is φ = 101712522202.

The previous prime is 203425044391. The next prime is 203425044421. The reversal of 203425044406 is 604440524302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 604440524302 = 2 ⋅302220262151.

It is an interprime number because it is at equal distance from previous prime (203425044391) and next prime (203425044421).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50856261100 + ... + 50856261103.

It is an arithmetic number, because the mean of its divisors is an integer number (76284391653).

Almost surely, 2^203425044406 is an apocalyptic number.

203425044406 is a deficient number, since it is larger than the sum of its proper divisors (101712522206).

203425044406 is a wasteful number, since it uses less digits than its factorization.

203425044406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101712522205.

The product of its (nonzero) digits is 92160, while the sum is 34.

Adding to 203425044406 its reverse (604440524302), we get a palindrome (807865568708).

The spelling of 203425044406 in words is "two hundred three billion, four hundred twenty-five million, forty-four thousand, four hundred six".