22431143000000 has 784 divisors, whose sum is σ = 67700452173120. Its totient is φ = 7198310400000.

The previous prime is 22431142999987. The next prime is 22431143000009. The reversal of 22431143000000 is 34113422.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22431143000009) by changing a digit.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 27726999596 + ... + 27727000404.

Almost surely, 2^{22431143000000} is an apocalyptic number.

22431143000000 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 22431143000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33850226086560).

22431143000000 is an abundant number, since it is smaller than the sum of its proper divisors (45269309173120).

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

22431143000000 is an frugal number, since it uses more digits than its factorization.

22431143000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1108 (or 1073 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 22431143000000 its reverse (34113422), we get a palindrome (22431177113422).

The spelling of 22431143000000 in words is "twenty-two trillion, four hundred thirty-one billion, one hundred forty-three million", and thus it is an aban number.