2100210002123 has 8 divisors (see below), whose sum is σ = 2138980383600. Its totient is φ = 2061545407488.

The previous prime is 2100210002101. The next prime is 2100210002171. The reversal of 2100210002123 is 3212000120012.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2100210002123 - 2²⁶ = 2100142893259 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2100210002098 and 2100210002107.

It is not an unprimeable number, because it can be changed into a prime (2100210002923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26406638 + ... + 26486051.

It is an arithmetic number, because the mean of its divisors is an integer number (267372547950).

Almost surely, 2^{2100210002123} is an apocalyptic number.

2100210002123 is a deficient number, since it is larger than the sum of its proper divisors (38770381477).

2100210002123 is an equidigital number, since it uses as much as digits as its factorization.

2100210002123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52893421.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 2100210002123 its reverse (3212000120012), we get a palindrome (5312210122135).

The spelling of 2100210002123 in words is "two trillion, one hundred billion, two hundred ten million, two thousand, one hundred twenty-three".