123210013012 has 12 divisors (see below), whose sum is σ = 215642886676. Its totient is φ = 61597759680.

The previous prime is 123210012997. The next prime is 123210013027. The reversal of 123210013012 is 210310012321.

It is an interprime number because it is at equal distance from previous prime (123210012997) and next prime (123210013027).

It can be written as a sum of positive squares in 2 ways, for example, as 24390318276 + 98819694736 = 156174^2 + 314356^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1773363 + ... + 1841530.

Almost surely, 2^123210013012 is an apocalyptic number.

It is an amenable number.

123210013012 is a deficient number, since it is larger than the sum of its proper divisors (92432873664).

123210013012 is a wasteful number, since it uses less digits than its factorization.

123210013012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3623418 (or 3623416 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 123210013012 its reverse (210310012321), we get a palindrome (333520025333).

The spelling of 123210013012 in words is "one hundred twenty-three billion, two hundred ten million, thirteen thousand, twelve".