2002111001243 has 2 divisors, whose sum is σ = 2002111001244. Its totient is φ = 2002111001242.

The previous prime is 2002111001197. The next prime is 2002111001279. The reversal of 2002111001243 is 3421001112002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2002111001243 - 2¹⁶ = 2002110935707 is a prime.

It is a super-2 number, since 2×2002111001243² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2002111009243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001055500621 + 1001055500622.

It is an arithmetic number, because the mean of its divisors is an integer number (1001055500622).

Almost surely, 2^{2002111001243} is an apocalyptic number.

2002111001243 is a deficient number, since it is larger than the sum of its proper divisors (1).

2002111001243 is an equidigital number, since it uses as much as digits as its factorization.

2002111001243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 2002111001243 its reverse (3421001112002), we get a palindrome (5423112113245).

The spelling of 2002111001243 in words is "two trillion, two billion, one hundred eleven million, one thousand, two hundred forty-three".