20000430433140 has 192 divisors, whose sum is σ = 57589564032000. Its totient is φ = 5184483563520.

The previous prime is 20000430433133. The next prime is 20000430433141. The reversal of 20000430433140 is 4133403400002.

It is a self number, because there is not a number n which added to its sum of digits gives 20000430433140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000430433141) 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, 155123221 + ... + 155252099.

It is an arithmetic number, because the mean of its divisors is an integer number (299945646000).

Almost surely, 2^{20000430433140} is an apocalyptic number.

20000430433140 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 20000430433140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28794782016000).

20000430433140 is an abundant number, since it is smaller than the sum of its proper divisors (37589133598860).

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

20000430433140 is a wasteful number, since it uses less digits than its factorization.

20000430433140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129450 (or 129448 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 20000430433140 its reverse (4133403400002), we get a palindrome (24133833833142).

The spelling of 20000430433140 in words is "twenty trillion, four hundred thirty million, four hundred thirty-three thousand, one hundred forty".