2180200031 has 2 divisors, whose sum is σ = 2180200032. Its totient is φ = 2180200030.

The previous prime is 2180200013. The next prime is 2180200069. The reversal of 2180200031 is 1300020812.

Together with previous prime (2180200013) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2180200031 - 2¹⁴ = 2180183647 is a prime.

It is a super-2 number, since 2×2180200031² = 9506544350344801922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2180199982 and 2180200009.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2180200081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1090100015 + 1090100016.

It is an arithmetic number, because the mean of its divisors is an integer number (1090100016).

Almost surely, 2^2180200031 is an apocalyptic number.

2180200031 is a deficient number, since it is larger than the sum of its proper divisors (1).

2180200031 is an equidigital number, since it uses as much as digits as its factorization.

2180200031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 2180200031 is about 46692.6121672369. The cubic root of 2180200031 is about 1296.6779144535.

Adding to 2180200031 its reverse (1300020812), we get a palindrome (3480220843).

The spelling of 2180200031 in words is "two billion, one hundred eighty million, two hundred thousand, thirty-one".