203111023230220 has 24 divisors (see below), whose sum is σ = 487466455752864. Its totient is φ = 69638065107456.

The previous prime is 203111023230191. The next prime is 203111023230257. The reversal of 203111023230220 is 22032320111302.

It is a junction number, because it is equal to n+sod(n) for n = 203111023230191 and 203111023230200.

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, 725396511397 + ... + 725396511676.

It is an arithmetic number, because the mean of its divisors is an integer number (20311102323036).

Almost surely, 2^{203111023230220} is an apocalyptic number.

203111023230220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203111023230220 is an abundant number, since it is smaller than the sum of its proper divisors (284355432522644).

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

203111023230220 is a wasteful number, since it uses less digits than its factorization.

203111023230220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1450793023089 (or 1450793023087 counting only the distinct ones).

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

Adding to 203111023230220 its reverse (22032320111302), we get a palindrome (225143343341522).

The spelling of 203111023230220 in words is "two hundred three trillion, one hundred eleven billion, twenty-three million, two hundred thirty thousand, two hundred twenty".