20143104432 has 160 divisors (see below), whose sum is σ = 62179591680. Its totient is φ = 5546741760.

The previous prime is 20143104431. The next prime is 20143104433. The reversal of 20143104432 is 23440134102.

It is an interprime number because it is at equal distance from previous prime (20143104431) and next prime (20143104433).

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

It is not an unprimeable number, because it can be changed into a prime (20143104431) 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, 221613 + ... + 298995.

It is an arithmetic number, because the mean of its divisors is an integer number (388622448).

Almost surely, 2^20143104432 is an apocalyptic number.

20143104432 is a gapful number since it is divisible by the number (22) 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 20143104432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31089795840).

20143104432 is an abundant number, since it is smaller than the sum of its proper divisors (42036487248).

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

20143104432 is a wasteful number, since it uses less digits than its factorization.

20143104432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77451 (or 77445 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 20143104432 its reverse (23440134102), we get a palindrome (43583238534).

The spelling of 20143104432 in words is "twenty billion, one hundred forty-three million, one hundred four thousand, four hundred thirty-two".