203123499440100 has 72 divisors (see below), whose sum is σ = 587830574247840. Its totient is φ = 54154599924480.

The previous prime is 203123499440077. The next prime is 203123499440117. The reversal of 203123499440100 is 1044994321302.

203123499440100 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 71520985 + ... + 74306784.

It is an arithmetic number, because the mean of its divisors is an integer number (8164313531220).

Almost surely, 2^{203123499440100} is an apocalyptic number.

203123499440100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203123499440100 is an abundant number, since it is smaller than the sum of its proper divisors (384707074807740).

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

203123499440100 is a wasteful number, since it uses less digits than its factorization.

203123499440100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145832429 (or 145832422 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 42.

The spelling of 203123499440100 in words is "two hundred three trillion, one hundred twenty-three billion, four hundred ninety-nine million, four hundred forty thousand, one hundred".