2100100310123 has 8 divisors (see below), whose sum is σ = 2112419055600. Its totient is φ = 2087783627488.

The previous prime is 2100100310089. The next prime is 2100100310159. The reversal of 2100100310123 is 3210130010012.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2100100310123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2100100310098 and 2100100310107.

It is not an unprimeable number, because it can be changed into a prime (2100100310323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1550588 + ... + 2569926.

It is an arithmetic number, because the mean of its divisors is an integer number (264052381950).

Almost surely, 2^{2100100310123} is an apocalyptic number.

2100100310123 is a deficient number, since it is larger than the sum of its proper divisors (12318745477).

2100100310123 is a wasteful number, since it uses less digits than its factorization.

2100100310123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031421.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 2100100310123 its reverse (3210130010012), we get a palindrome (5310230320135).

The spelling of 2100100310123 in words is "two trillion, one hundred billion, one hundred million, three hundred ten thousand, one hundred twenty-three".