2180429101 has 2 divisors, whose sum is σ = 2180429102. Its totient is φ = 2180429100.

The previous prime is 2180429093. The next prime is 2180429131. The reversal of 2180429101 is 1019240812.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2176222500 + 4206601 = 46650^2 + 2051^2 .

It is a cyclic number.

It is not a de Polignac number, because 2180429101 - 2³ = 2180429093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2180429101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2180429131) 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 as a sum of consecutive naturals, namely, 1090214550 + 1090214551.

It is an arithmetic number, because the mean of its divisors is an integer number (1090214551).

Almost surely, 2^2180429101 is an apocalyptic number.

It is an amenable number.

2180429101 is a deficient number, since it is larger than the sum of its proper divisors (1).

2180429101 is an equidigital number, since it uses as much as digits as its factorization.

2180429101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 2180429101 is about 46695.0650604537. The cubic root of 2180429101 is about 1296.7233261288.

Adding to 2180429101 its reverse (1019240812), we get a palindrome (3199669913).

It can be divided in two parts, 21804 and 29101, that added together give a palindrome (50905).

The spelling of 2180429101 in words is "two billion, one hundred eighty million, four hundred twenty-nine thousand, one hundred one".