123335453212 has 24 divisors (see below), whose sum is σ = 216156049200. Its totient is φ = 61576632960.

The previous prime is 123335453191. The next prime is 123335453221. The reversal of 123335453212 is 212354533321.

It is a super-2 number, since 2×123335453212² (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, 20515287 + ... + 20521297.

It is an arithmetic number, because the mean of its divisors is an integer number (9006502050).

Almost surely, 2^123335453212 is an apocalyptic number.

It is an amenable number.

123335453212 is a deficient number, since it is larger than the sum of its proper divisors (92820595988).

123335453212 is a wasteful number, since it uses less digits than its factorization.

123335453212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12741 (or 12739 counting only the distinct ones).

The product of its digits is 64800, while the sum is 34.

Adding to 123335453212 its reverse (212354533321), we get a palindrome (335689986533).

The spelling of 123335453212 in words is "one hundred twenty-three billion, three hundred thirty-five million, four hundred fifty-three thousand, two hundred twelve".