203451322485 has 16 divisors (see below), whose sum is σ = 325594258560. Its totient is φ = 108483324480.

The previous prime is 203451322469. The next prime is 203451322583. The reversal of 203451322485 is 584223154302.

It is not a de Polignac number, because 203451322485 - 2⁴ = 203451322469 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1432926 + ... + 1568495.

It is an arithmetic number, because the mean of its divisors is an integer number (20349641160).

Almost surely, 2^203451322485 is an apocalyptic number.

It is an amenable number.

203451322485 is a deficient number, since it is larger than the sum of its proper divisors (122142936075).

203451322485 is a wasteful number, since it uses less digits than its factorization.

203451322485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3005948.

The product of its (nonzero) digits is 230400, while the sum is 39.

Adding to 203451322485 its reverse (584223154302), we get a palindrome (787674476787).

The spelling of 203451322485 in words is "two hundred three billion, four hundred fifty-one million, three hundred twenty-two thousand, four hundred eighty-five".