13123420000 has 60 divisors (see below), whose sum is σ = 32285630916. Its totient is φ = 5249360000.

The previous prime is 13123419997. The next prime is 13123420001. The reversal of 13123420000 is 2432131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13123420001) 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 9 ways as a sum of consecutive naturals, for example, 308086 + ... + 348085.

Almost surely, 2^13123420000 is an apocalyptic number.

13123420000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13123420000 is an abundant number, since it is smaller than the sum of its proper divisors (19162210916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13123420000 is an frugal number, since it uses more digits than its factorization.

13123420000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656201 (or 656178 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 13123420000 its reverse (2432131), we get a palindrome (13125852131).

The spelling of 13123420000 in words is "thirteen billion, one hundred twenty-three million, four hundred twenty thousand".