203203321023340 has 24 divisors (see below), whose sum is σ = 465520335435792. Its totient is φ = 73892116735680.

The previous prime is 203203321023281. The next prime is 203203321023361. The reversal of 203203321023340 is 43320123302302.

It is a junction number, because it is equal to n+sod(n) for n = 203203321023299 and 203203321023308.

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, 461825729379 + ... + 461825729818.

It is an arithmetic number, because the mean of its divisors is an integer number (19396680643158).

Almost surely, 2^{203203321023340} is an apocalyptic number.

203203321023340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203203321023340 is an abundant number, since it is smaller than the sum of its proper divisors (262317014412452).

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

203203321023340 is a wasteful number, since it uses less digits than its factorization.

203203321023340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 923651459217 (or 923651459215 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 28.

Adding to 203203321023340 its reverse (43320123302302), we get a palindrome (246523444325642).

The spelling of 203203321023340 in words is "two hundred three trillion, two hundred three billion, three hundred twenty-one million, twenty-three thousand, three hundred forty".