20203123000000 has 588 divisors, whose sum is σ = 54279303653520. Its totient is φ = 7456716800000.

The previous prime is 20203122999989. The next prime is 20203123000003. The reversal of 20203123000000 is 32130202.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20203123000003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 15316999341 + ... + 15317000659.

Almost surely, 2^{20203123000000} is an apocalyptic number.

20203123000000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20203123000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27139651826760).

20203123000000 is an abundant number, since it is smaller than the sum of its proper divisors (34076180653520).

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

20203123000000 is an frugal number, since it uses more digits than its factorization.

20203123000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1448 (or 1396 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 20203123000000 its reverse (32130202), we get a palindrome (20203155130202).

The spelling of 20203123000000 in words is "twenty trillion, two hundred three billion, one hundred twenty-three million", and thus it is an aban number.