40210102001 has 2 divisors, whose sum is σ = 40210102002. Its totient is φ = 40210102000.

The previous prime is 40210101991. The next prime is 40210102003. The reversal of 40210102001 is 10020101204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35560907776 + 4649194225 = 188576^2 + 68185^2 .

It is a cyclic number.

It is not a de Polignac number, because 40210102001 - 2³⁰ = 39136360177 is a prime.

It is a Sophie Germain prime.

Together with 40210102003, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (40210102003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20105051000 + 20105051001.

It is an arithmetic number, because the mean of its divisors is an integer number (20105051001).

Almost surely, 2^40210102001 is an apocalyptic number.

It is an amenable number.

40210102001 is a deficient number, since it is larger than the sum of its proper divisors (1).

40210102001 is an equidigital number, since it uses as much as digits as its factorization.

40210102001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 40210102001 its reverse (10020101204), we get a palindrome (50230203205).

The spelling of 40210102001 in words is "forty billion, two hundred ten million, one hundred two thousand, one".