20431004000 has 192 divisors, whose sum is σ = 57647116800. Its totient is φ = 7038144000.

The previous prime is 20431003889. The next prime is 20431004003. The reversal of 20431004000 is 40013402.

It is a super-3 number, since 3×20431004000³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20431004003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 823781 + ... + 848219.

It is an arithmetic number, because the mean of its divisors is an integer number (300245400).

Almost surely, 2^20431004000 is an apocalyptic number.

20431004000 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 20431004000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28823558400).

20431004000 is an abundant number, since it is smaller than the sum of its proper divisors (37216112800).

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

20431004000 is a wasteful number, since it uses less digits than its factorization.

20431004000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24494 (or 24476 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

Adding to 20431004000 its reverse (40013402), we get a palindrome (20471017402).

The spelling of 20431004000 in words is "twenty billion, four hundred thirty-one million, four thousand".