43202020231 has 2 divisors, whose sum is σ = 43202020232. Its totient is φ = 43202020230.

The previous prime is 43202020201. The next prime is 43202020349. The reversal of 43202020231 is 13202020234.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43202020231 - 2²¹ = 43199923079 is a prime.

It is a super-2 number, since 2×43202020231² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 43202020199 and 43202020208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43202020201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21601010115 + 21601010116.

It is an arithmetic number, because the mean of its divisors is an integer number (21601010116).

Almost surely, 2^43202020231 is an apocalyptic number.

43202020231 is a deficient number, since it is larger than the sum of its proper divisors (1).

43202020231 is an equidigital number, since it uses as much as digits as its factorization.

43202020231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 43202020231 its reverse (13202020234), we get a palindrome (56404040465).

The spelling of 43202020231 in words is "forty-three billion, two hundred two million, twenty thousand, two hundred thirty-one".