23112130212 has 18 divisors (see below), whose sum is σ = 58422329238. Its totient is φ = 7704043392.

The previous prime is 23112130201. The next prime is 23112130229. The reversal of 23112130212 is 21203121132.

23112130212 is a `hidden beast` number, since 231 + 121 + 302 + 12 = 666.

It can be written as a sum of positive squares in only one way, i.e., 14877656676 + 8234473536 = 121974^2 + 90744^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 321001773 + ... + 321001844.

Almost surely, 2^23112130212 is an apocalyptic number.

It is an amenable number.

23112130212 is an abundant number, since it is smaller than the sum of its proper divisors (35310199026).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23112130212 is a wasteful number, since it uses less digits than its factorization.

23112130212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642003627 (or 642003622 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 23112130212 its reverse (21203121132), we get a palindrome (44315251344).

The spelling of 23112130212 in words is "twenty-three billion, one hundred twelve million, one hundred thirty thousand, two hundred twelve".