203203320121120 has 96 divisors (see below), whose sum is σ = 526737603430080. Its totient is φ = 73464994237440.

The previous prime is 203203320121103. The next prime is 203203320121127. The reversal of 203203320121120 is 21121023302302.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 203203320121091 and 203203320121100.

It is not an unprimeable number, because it can be changed into a prime (203203320121127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 333384630 + ... + 333993589.

It is an arithmetic number, because the mean of its divisors is an integer number (5486850035730).

Almost surely, 2^{203203320121120} is an apocalyptic number.

203203320121120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203203320121120 is an abundant number, since it is smaller than the sum of its proper divisors (323534283308960).

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

203203320121120 is a wasteful number, since it uses less digits than its factorization.

203203320121120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667378418 (or 667378410 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 203203320121120 its reverse (21121023302302), we get a palindrome (224324343423422).

The spelling of 203203320121120 in words is "two hundred three trillion, two hundred three billion, three hundred twenty million, one hundred twenty-one thousand, one hundred twenty".