2010000021123 has 4 divisors (see below), whose sum is σ = 2680000028168. Its totient is φ = 1340000014080.

The previous prime is 2010000021121. The next prime is 2010000021131. The reversal of 2010000021123 is 3211200000102.

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

It is not a de Polignac number, because 2010000021123 - 2¹ = 2010000021121 is a prime.

It is a super-2 number, since 2×2010000021123² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2010000021099 and 2010000021108.

It is not an unprimeable number, because it can be changed into a prime (2010000021121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335000003518 + ... + 335000003523.

It is an arithmetic number, because the mean of its divisors is an integer number (670000007042).

Almost surely, 2^{2010000021123} is an apocalyptic number.

2010000021123 is a deficient number, since it is larger than the sum of its proper divisors (670000007045).

2010000021123 is an equidigital number, since it uses as much as digits as its factorization.

2010000021123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670000007044.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 2010000021123 its reverse (3211200000102), we get a palindrome (5221200021225).

The spelling of 2010000021123 in words is "two trillion, ten billion, twenty-one thousand, one hundred twenty-three".