23123100212 has 12 divisors (see below), whose sum is σ = 40474925316. Its totient is φ = 11558835840.

The previous prime is 23123100191. The next prime is 23123100223. The reversal of 23123100212 is 21200132132.

It can be written as a sum of positive squares in 2 ways, for example, as 9887518096 + 13235582116 = 99436^2 + 115046^2 .

It is a super-3 number, since 3×23123100212³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 659339 + ... + 693522.

It is an arithmetic number, because the mean of its divisors is an integer number (3372910443).

Almost surely, 2^23123100212 is an apocalyptic number.

It is an amenable number.

23123100212 is a deficient number, since it is larger than the sum of its proper divisors (17351825104).

23123100212 is a wasteful number, since it uses less digits than its factorization.

23123100212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1357138 (or 1357136 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 23123100212 its reverse (21200132132), we get a palindrome (44323232344).

The spelling of 23123100212 in words is "twenty-three billion, one hundred twenty-three million, one hundred thousand, two hundred twelve".