20432311203430 has 16 divisors (see below), whose sum is σ = 42032183047200. Its totient is φ = 7005363841152.

The previous prime is 20432311203413. The next prime is 20432311203449. The reversal of 20432311203430 is 3430211323402.

It is a happy number.

It is a super-2 number, since 2×20432311203430² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145945079955 + ... + 145945080094.

It is an arithmetic number, because the mean of its divisors is an integer number (2627011440450).

Almost surely, 2^{20432311203430} is an apocalyptic number.

20432311203430 is an abundant number, since it is smaller than the sum of its proper divisors (21599871843770).

20432311203430 is a wasteful number, since it uses less digits than its factorization.

20432311203430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291890160063.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 20432311203430 its reverse (3430211323402), we get a palindrome (23862522526832).

The spelling of 20432311203430 in words is "twenty trillion, four hundred thirty-two billion, three hundred eleven million, two hundred three thousand, four hundred thirty".