123011120212 has 24 divisors (see below), whose sum is σ = 223705036800. Its totient is φ = 59122027680.

The previous prime is 123011120191. The next prime is 123011120279. The reversal of 123011120212 is 212021110321.

123011120212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×123011120212² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3310468 + ... + 3347419.

It is an arithmetic number, because the mean of its divisors is an integer number (9321043200).

Almost surely, 2^123011120212 is an apocalyptic number.

It is an amenable number.

123011120212 is a deficient number, since it is larger than the sum of its proper divisors (100693916588).

123011120212 is a wasteful number, since it uses less digits than its factorization.

123011120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6658071 (or 6658069 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 123011120212 its reverse (212021110321), we get a palindrome (335032230533).

The spelling of 123011120212 in words is "one hundred twenty-three billion, eleven million, one hundred twenty thousand, two hundred twelve".