20203012323120 has 320 divisors, whose sum is σ = 70517995130880. Its totient is φ = 4742824627200.

The previous prime is 20203012323107. The next prime is 20203012323127. The reversal of 20203012323120 is 2132321030202.

It is a happy number.

It is a super-3 number, since 3×20203012323120³ (a number of 41 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (20203012323127) 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, 9467965 + ... + 11403875.

It is an arithmetic number, because the mean of its divisors is an integer number (220368734784).

Almost surely, 2^{20203012323120} is an apocalyptic number.

20203012323120 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 20203012323120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35258997565440).

20203012323120 is an abundant number, since it is smaller than the sum of its proper divisors (50314982807760).

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

20203012323120 is a wasteful number, since it uses less digits than its factorization.

20203012323120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1936064 (or 1936058 counting only the distinct ones).

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

Adding to 20203012323120 its reverse (2132321030202), we get a palindrome (22335333353322).

The spelling of 20203012323120 in words is "twenty trillion, two hundred three billion, twelve million, three hundred twenty-three thousand, one hundred twenty".