211002101923 has 2 divisors, whose sum is σ = 211002101924. Its totient is φ = 211002101922.

The previous prime is 211002101909. The next prime is 211002101929. The reversal of 211002101923 is 329101200112.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211002101923 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211002101894 and 211002101903.

It is not a weakly prime, because it can be changed into another prime (211002101929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105501050961 + 105501050962.

It is an arithmetic number, because the mean of its divisors is an integer number (105501050962).

Almost surely, 2^211002101923 is an apocalyptic number.

211002101923 is a deficient number, since it is larger than the sum of its proper divisors (1).

211002101923 is an equidigital number, since it uses as much as digits as its factorization.

211002101923 is an evil number, because the sum of its binary digits is even.

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

The spelling of 211002101923 in words is "two hundred eleven billion, two million, one hundred one thousand, nine hundred twenty-three".