20237144343 has 16 divisors (see below), whose sum is σ = 30321876480. Its totient is φ = 11912164704.

The previous prime is 20237144341. The next prime is 20237144353. The reversal of 20237144343 is 34344173202.

It is a happy number.

It is not a de Polignac number, because 20237144343 - 2¹ = 20237144341 is a prime.

It is a super-2 number, since 2×20237144343² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20237144341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11279563 + ... + 11281356.

It is an arithmetic number, because the mean of its divisors is an integer number (1895117280).

Almost surely, 2^20237144343 is an apocalyptic number.

20237144343 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

20237144343 is a deficient number, since it is larger than the sum of its proper divisors (10084732137).

20237144343 is a wasteful number, since it uses less digits than its factorization.

20237144343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22560958.

The product of its (nonzero) digits is 48384, while the sum is 33.

The spelling of 20237144343 in words is "twenty billion, two hundred thirty-seven million, one hundred forty-four thousand, three hundred forty-three".