2002101209947 has 2 divisors, whose sum is σ = 2002101209948. Its totient is φ = 2002101209946.

The previous prime is 2002101209909. The next prime is 2002101210023. The reversal of 2002101209947 is 7499021012002.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2002101209947 is a prime.

It is not a weakly prime, because it can be changed into another prime (2002101209047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001050604973 + 1001050604974.

It is an arithmetic number, because the mean of its divisors is an integer number (1001050604974).

Almost surely, 2^{2002101209947} is an apocalyptic number.

2002101209947 is a deficient number, since it is larger than the sum of its proper divisors (1).

2002101209947 is an equidigital number, since it uses as much as digits as its factorization.

2002101209947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 37.

The spelling of 2002101209947 in words is "two trillion, two billion, one hundred one million, two hundred nine thousand, nine hundred forty-seven".