2002000101691 has 2 divisors, whose sum is σ = 2002000101692. Its totient is φ = 2002000101690.

The previous prime is 2002000101677. The next prime is 2002000101707. The reversal of 2002000101691 is 1961010002002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2002000101691 - 2⁵ = 2002000101659 is a prime.

It is not a weakly prime, because it can be changed into another prime (2002000101601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001000050845 + 1001000050846.

It is an arithmetic number, because the mean of its divisors is an integer number (1001000050846).

Almost surely, 2^{2002000101691} is an apocalyptic number.

2002000101691 is a deficient number, since it is larger than the sum of its proper divisors (1).

2002000101691 is an equidigital number, since it uses as much as digits as its factorization.

2002000101691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 2002000101691 its reverse (1961010002002), we get a palindrome (3963010103693).

The spelling of 2002000101691 in words is "two trillion, two billion, one hundred one thousand, six hundred ninety-one".