123202013212 has 6 divisors (see below), whose sum is σ = 215603523128. Its totient is φ = 61601006604.

The previous prime is 123202013153. The next prime is 123202013237. The reversal of 123202013212 is 212310202321.

It is a self number, because there is not a number n which added to its sum of digits gives 123202013212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15400251648 + ... + 15400251655.

Almost surely, 2^123202013212 is an apocalyptic number.

It is an amenable number.

123202013212 is a deficient number, since it is larger than the sum of its proper divisors (92401509916).

123202013212 is a wasteful number, since it uses less digits than its factorization.

123202013212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30800503307 (or 30800503305 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 123202013212 its reverse (212310202321), we get a palindrome (335512215533).

The spelling of 123202013212 in words is "one hundred twenty-three billion, two hundred two million, thirteen thousand, two hundred twelve".