2002011210123 has 4 divisors (see below), whose sum is σ = 2669348280168. Its totient is φ = 1334674140080.

The previous prime is 2002011210107. The next prime is 2002011210167. The reversal of 2002011210123 is 3210121102002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2002011210123 - 2⁴ = 2002011210107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2002011210103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 333668535018 + ... + 333668535023.

It is an arithmetic number, because the mean of its divisors is an integer number (667337070042).

Almost surely, 2^{2002011210123} is an apocalyptic number.

2002011210123 is a deficient number, since it is larger than the sum of its proper divisors (667337070045).

2002011210123 is an equidigital number, since it uses as much as digits as its factorization.

2002011210123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667337070044.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 2002011210123 its reverse (3210121102002), we get a palindrome (5212132312125).

The spelling of 2002011210123 in words is "two trillion, two billion, eleven million, two hundred ten thousand, one hundred twenty-three".