121123023212 has 12 divisors (see below), whose sum is σ = 212078111280. Its totient is φ = 60529277136.

The previous prime is 121123023211. The next prime is 121123023253. The reversal of 121123023212 is 212320321121.

It is not an unprimeable number, because it can be changed into a prime (121123023211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8050163 + ... + 8065194.

It is an arithmetic number, because the mean of its divisors is an integer number (17673175940).

Almost surely, 2^121123023212 is an apocalyptic number.

It is an amenable number.

121123023212 is a deficient number, since it is larger than the sum of its proper divisors (90955088068).

121123023212 is a wasteful number, since it uses less digits than its factorization.

121123023212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16117240 (or 16117238 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 121123023212 its reverse (212320321121), we get a palindrome (333443344333).

The spelling of 121123023212 in words is "one hundred twenty-one billion, one hundred twenty-three million, twenty-three thousand, two hundred twelve".