123101303212 has 12 divisors (see below), whose sum is σ = 218461468176. Its totient is φ = 60683740880.

The previous prime is 123101303209. The next prime is 123101303219. The reversal of 123101303212 is 212303101321.

It is a self number, because there is not a number n which added to its sum of digits gives 123101303212.

It is not an unprimeable number, because it can be changed into a prime (123101303219) 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, 216727363 + ... + 216727930.

It is an arithmetic number, because the mean of its divisors is an integer number (18205122348).

Almost surely, 2^123101303212 is an apocalyptic number.

It is an amenable number.

123101303212 is a deficient number, since it is larger than the sum of its proper divisors (95360164964).

123101303212 is a wasteful number, since it uses less digits than its factorization.

123101303212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433455368 (or 433455366 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 123101303212 its reverse (212303101321), we get a palindrome (335404404533).

The spelling of 123101303212 in words is "one hundred twenty-three billion, one hundred one million, three hundred three thousand, two hundred twelve".