2002101181 has 2 divisors, whose sum is σ = 2002101182. Its totient is φ = 2002101180.

The previous prime is 2002101151. The next prime is 2002101223. The reversal of 2002101181 is 1811012002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1999431225 + 2669956 = 44715^2 + 1634^2 .

It is a cyclic number.

It is not a de Polignac number, because 2002101181 - 2¹⁵ = 2002068413 is a prime.

It is a super-2 number, since 2×2002101181² = 8016818277923189522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2002101131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001050590 + 1001050591.

It is an arithmetic number, because the mean of its divisors is an integer number (1001050591).

Almost surely, 2^2002101181 is an apocalyptic number.

It is an amenable number.

2002101181 is a deficient number, since it is larger than the sum of its proper divisors (1).

2002101181 is an equidigital number, since it uses as much as digits as its factorization.

2002101181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 16.

The square root of 2002101181 is about 44744.8453008835. The cubic root of 2002101181 is about 1260.3621158329.

Adding to 2002101181 its reverse (1811012002), we get a palindrome (3813113183).

The spelling of 2002101181 in words is "two billion, two million, one hundred one thousand, one hundred eighty-one".