203293209251920 has 160 divisors (see below), whose sum is σ = 483228513395712. Its totient is φ = 79518314151936.

The previous prime is 203293209251879. The next prime is 203293209251929. The reversal of 203293209251920 is 29152902392302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203293209251929) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 421692934 + ... + 422174746.

Almost surely, 2^{203293209251920} is an apocalyptic number.

203293209251920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 203293209251920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (241614256697856).

203293209251920 is an abundant number, since it is smaller than the sum of its proper divisors (279935304143792).

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

203293209251920 is a wasteful number, since it uses less digits than its factorization.

203293209251920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482469 (or 482463 counting only the distinct ones).

The product of its (nonzero) digits is 1049760, while the sum is 49.

The spelling of 203293209251920 in words is "two hundred three trillion, two hundred ninety-three billion, two hundred nine million, two hundred fifty-one thousand, nine hundred twenty".