13123411012 has 24 divisors (see below), whose sum is σ = 23120720000. Its totient is φ = 6517539936.

The previous prime is 13123411003. The next prime is 13123411013. The reversal of 13123411012 is 21011432131.

It is not an unprimeable number, because it can be changed into a prime (13123411013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1298314 + ... + 1308382.

Almost surely, 2^13123411012 is an apocalyptic number.

It is an amenable number.

13123411012 is a deficient number, since it is larger than the sum of its proper divisors (9997308988).

13123411012 is a wasteful number, since it uses less digits than its factorization.

13123411012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12235 (or 12233 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 13123411012 its reverse (21011432131), we get a palindrome (34134843143).

The spelling of 13123411012 in words is "thirteen billion, one hundred twenty-three million, four hundred eleven thousand, twelve".