203002032121220 has 96 divisors (see below), whose sum is σ = 433491458400000. Its totient is φ = 79843387451904.

The previous prime is 203002032121169. The next prime is 203002032121313. The reversal of 203002032121220 is 22121230200302.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 203002032121192 and 203002032121201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 843657767 + ... + 843898353.

It is an arithmetic number, because the mean of its divisors is an integer number (4515536025000).

Almost surely, 2^{203002032121220} is an apocalyptic number.

203002032121220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203002032121220 is an abundant number, since it is smaller than the sum of its proper divisors (230489426278780).

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

203002032121220 is a wasteful number, since it uses less digits than its factorization.

203002032121220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243597 (or 243595 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 203002032121220 its reverse (22121230200302), we get a palindrome (225123262321522).

The spelling of 203002032121220 in words is "two hundred three trillion, two billion, thirty-two million, one hundred twenty-one thousand, two hundred twenty".