2201002001923 has 2 divisors, whose sum is σ = 2201002001924. Its totient is φ = 2201002001922.

The previous prime is 2201002001909. The next prime is 2201002002071. The reversal of 2201002001923 is 3291002001022.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2201002001923 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2201002001894 and 2201002001903.

It is not a weakly prime, because it can be changed into another prime (2201002002923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1100501000961 + 1100501000962.

It is an arithmetic number, because the mean of its divisors is an integer number (1100501000962).

Almost surely, 2^{2201002001923} is an apocalyptic number.

2201002001923 is a deficient number, since it is larger than the sum of its proper divisors (1).

2201002001923 is an equidigital number, since it uses as much as digits as its factorization.

2201002001923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 2201002001923 its reverse (3291002001022), we get a palindrome (5492004002945).

The spelling of 2201002001923 in words is "two trillion, two hundred one billion, two million, one thousand, nine hundred twenty-three".