123213001112 has 16 divisors (see below), whose sum is σ = 231067137840. Its totient is φ = 61595097696.

The previous prime is 123213001103. The next prime is 123213001117. The reversal of 123213001112 is 211100312321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123213001117) 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, 1379348 + ... + 1465955.

It is an arithmetic number, because the mean of its divisors is an integer number (14441696115).

Almost surely, 2^123213001112 is an apocalyptic number.

It is an amenable number.

123213001112 is a deficient number, since it is larger than the sum of its proper divisors (107854136728).

123213001112 is a wasteful number, since it uses less digits than its factorization.

123213001112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2850722 (or 2850718 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 123213001112 its reverse (211100312321), we get a palindrome (334313313433).

The spelling of 123213001112 in words is "one hundred twenty-three billion, two hundred thirteen million, one thousand, one hundred twelve".