212030123123 has 32 divisors (see below), whose sum is σ = 263706850176. Its totient is φ = 165999310848.

The previous prime is 212030123113. The next prime is 212030123141. The reversal of 212030123123 is 321321030212.

It is not a de Polignac number, because 212030123123 - 2¹⁰ = 212030122099 is a prime.

It is a super-2 number, since 2×212030123123² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212030123095 and 212030123104.

It is not an unprimeable number, because it can be changed into a prime (212030123113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6286661 + ... + 6320297.

It is an arithmetic number, because the mean of its divisors is an integer number (8240839068).

Almost surely, 2^212030123123 is an apocalyptic number.

212030123123 is a deficient number, since it is larger than the sum of its proper divisors (51676727053).

212030123123 is a wasteful number, since it uses less digits than its factorization.

212030123123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34383.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 212030123123 its reverse (321321030212), we get a palindrome (533351153335).

The spelling of 212030123123 in words is "two hundred twelve billion, thirty million, one hundred twenty-three thousand, one hundred twenty-three".