1000212123 has 8 divisors (see below), whose sum is σ = 1361991168. Its totient is φ = 652620584.

The previous prime is 1000212107. The next prime is 1000212133. The reversal of 1000212123 is 3212120001.

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 1000212123 - 2⁴ = 1000212107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1000212099 and 1000212108.

It is not an unprimeable number, because it can be changed into a prime (1000212133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3546711 + ... + 3546992.

It is an arithmetic number, because the mean of its divisors is an integer number (170248896).

Almost surely, 2^1000212123 is an apocalyptic number.

1000212123 is a deficient number, since it is larger than the sum of its proper divisors (361779045).

1000212123 is an equidigital number, since it uses as much as digits as its factorization.

1000212123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7093753.

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

The square root of 1000212123 is about 31626.1303829602. The cubic root of 1000212123 is about 1000.0707026677.

Adding to 1000212123 its reverse (3212120001), we get a palindrome (4212332124).

The spelling of 1000212123 in words is "one billion, two hundred twelve thousand, one hundred twenty-three".