20203123023210 has 128 divisors (see below), whose sum is σ = 50421678686208. Its totient is φ = 5175213120000.

The previous prime is 20203123023191. The next prime is 20203123023217. The reversal of 20203123023210 is 1232032130202.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20203123023217) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 185453577 + ... + 185562483.

It is an arithmetic number, because the mean of its divisors is an integer number (393919364736).

Almost surely, 2^{20203123023210} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20203123023210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25210839343104).

20203123023210 is an abundant number, since it is smaller than the sum of its proper divisors (30218555662998).

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

20203123023210 is a wasteful number, since it uses less digits than its factorization.

20203123023210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110420.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 20203123023210 its reverse (1232032130202), we get a palindrome (21435155153412).

The spelling of 20203123023210 in words is "twenty trillion, two hundred three billion, one hundred twenty-three million, twenty-three thousand, two hundred ten".