1000100200123 has 4 divisors (see below), whose sum is σ = 1000250079448. Its totient is φ = 999950320800.

The previous prime is 1000100200063. The next prime is 1000100200159. The reversal of 1000100200123 is 3210020010001.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1000100200123 is a prime.

It is a super-3 number, since 3×1000100200123³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1000100200193) 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, 74929653 + ... + 74942998.

It is an arithmetic number, because the mean of its divisors is an integer number (250062519862).

Almost surely, 2^{1000100200123} is an apocalyptic number.

1000100200123 is a deficient number, since it is larger than the sum of its proper divisors (149879325).

1000100200123 is an equidigital number, since it uses as much as digits as its factorization.

1000100200123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149879324.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 1000100200123 its reverse (3210020010001), we get a palindrome (4210120210124).

The spelling of 1000100200123 in words is "one trillion, one hundred million, two hundred thousand, one hundred twenty-three".