123233212013 has 32 divisors (see below), whose sum is σ = 131762400000. Its totient is φ = 114928284672.

The previous prime is 123233212009. The next prime is 123233212129. The reversal of 123233212013 is 310212332321.

It is not a de Polignac number, because 123233212013 - 2² = 123233212009 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123233212013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123233212213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 280713248 + ... + 280713686.

It is an arithmetic number, because the mean of its divisors is an integer number (4117575000).

Almost surely, 2^123233212013 is an apocalyptic number.

It is an amenable number.

123233212013 is a deficient number, since it is larger than the sum of its proper divisors (8529187987).

123233212013 is a wasteful number, since it uses less digits than its factorization.

123233212013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1269.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 123233212013 its reverse (310212332321), we get a palindrome (433445544334).

The spelling of 123233212013 in words is "one hundred twenty-three billion, two hundred thirty-three million, two hundred twelve thousand, thirteen".