2100012313123 has 8 divisors (see below), whose sum is σ = 2134249918560. Its totient is φ = 2065904151360.

The previous prime is 2100012313121. The next prime is 2100012313127. The reversal of 2100012313123 is 3213132100012.

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 2100012313123 - 2¹ = 2100012313121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2100012313123.

It is not an unprimeable number, because it can be changed into a prime (2100012313121) 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, 32328208 + ... + 32393101.

It is an arithmetic number, because the mean of its divisors is an integer number (266781239820).

Almost surely, 2^{2100012313123} is an apocalyptic number.

2100012313123 is a deficient number, since it is larger than the sum of its proper divisors (34237605437).

2100012313123 is an equidigital number, since it uses as much as digits as its factorization.

2100012313123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64721837.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 2100012313123 its reverse (3213132100012), we get a palindrome (5313144413135).

The spelling of 2100012313123 in words is "two trillion, one hundred billion, twelve million, three hundred thirteen thousand, one hundred twenty-three".