2100202987 has 2 divisors, whose sum is σ = 2100202988. Its totient is φ = 2100202986.

The previous prime is 2100202961. The next prime is 2100203009. The reversal of 2100202987 is 7892020012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2100202987 - 2⁷ = 2100202859 is a prime.

It is not a weakly prime, because it can be changed into another prime (2100202927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050101493 + 1050101494.

It is an arithmetic number, because the mean of its divisors is an integer number (1050101494).

Almost surely, 2^2100202987 is an apocalyptic number.

2100202987 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100202987 is an equidigital number, since it uses as much as digits as its factorization.

2100202987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 2100202987 is about 45827.9716657851. The cubic root of 2100202987 is about 1280.6204241221.

Adding to 2100202987 its reverse (7892020012), we get a palindrome (9992222999).

The spelling of 2100202987 in words is "two billion, one hundred million, two hundred two thousand, nine hundred eighty-seven".