20023150223040 has 224 divisors, whose sum is σ = 64470238709760. Its totient is φ = 5264383488000.

The previous prime is 20023150223039. The next prime is 20023150223051. The reversal of 20023150223040 is 4032205132002.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 20023150223040.

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, 52975525 + ... + 53352155.

Almost surely, 2^{20023150223040} is an apocalyptic number.

20023150223040 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 20023150223040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32235119354880).

20023150223040 is an abundant number, since it is smaller than the sum of its proper divisors (44447088486720).

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

20023150223040 is a wasteful number, since it uses less digits than its factorization.

20023150223040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377431 (or 377421 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

Adding to 20023150223040 its reverse (4032205132002), we get a palindrome (24055355355042).

The spelling of 20023150223040 in words is "twenty trillion, twenty-three billion, one hundred fifty million, two hundred twenty-three thousand, forty".