20000233123220 has 96 divisors (see below), whose sum is σ = 49158248122368. Its totient is φ = 6692107508352.

The previous prime is 20000233123219. The next prime is 20000233123243. The reversal of 20000233123220 is 2232133200002.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 20000233123192 and 20000233123201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5746289 + ... + 8545191.

It is an arithmetic number, because the mean of its divisors is an integer number (512065084608).

Almost surely, 2^{20000233123220} is an apocalyptic number.

20000233123220 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 20000233123220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24579124061184).

20000233123220 is an abundant number, since it is smaller than the sum of its proper divisors (29158014999148).

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

20000233123220 is a wasteful number, since it uses less digits than its factorization.

20000233123220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2800149 (or 2800147 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 20000233123220 its reverse (2232133200002), we get a palindrome (22232366323222).

The spelling of 20000233123220 in words is "twenty trillion, two hundred thirty-three million, one hundred twenty-three thousand, two hundred twenty".