203125642205420 has 24 divisors (see below), whose sum is σ = 465342380325648. Its totient is φ = 73863869892800.

The previous prime is 203125642205351. The next prime is 203125642205441. The reversal of 203125642205420 is 24502246521302.

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, 461649186611 + ... + 461649187050.

It is an arithmetic number, because the mean of its divisors is an integer number (19389265846902).

Almost surely, 2^{203125642205420} is an apocalyptic number.

203125642205420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203125642205420 is an abundant number, since it is smaller than the sum of its proper divisors (262216738120228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

203125642205420 is a wasteful number, since it uses less digits than its factorization.

203125642205420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 923298373681 (or 923298373679 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 38.

Adding to 203125642205420 its reverse (24502246521302), we get a palindrome (227627888726722).

The spelling of 203125642205420 in words is "two hundred three trillion, one hundred twenty-five billion, six hundred forty-two million, two hundred five thousand, four hundred twenty".