20332401143430 has 128 divisors (see below), whose sum is σ = 51634065600000. Its totient is φ = 5109843308544.

The previous prime is 20332401143393. The next prime is 20332401143459. The reversal of 20332401143430 is 3434110423302.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 161545204 + ... + 161671016.

It is an arithmetic number, because the mean of its divisors is an integer number (403391137500).

Almost surely, 2^{20332401143430} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20332401143430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25817032800000).

20332401143430 is an abundant number, since it is smaller than the sum of its proper divisors (31301664456570).

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

20332401143430 is a wasteful number, since it uses less digits than its factorization.

20332401143430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127318.

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 20332401143430 its reverse (3434110423302), we get a palindrome (23766511566732).

The spelling of 20332401143430 in words is "twenty trillion, three hundred thirty-two billion, four hundred one million, one hundred forty-three thousand, four hundred thirty".