13423051420 has 24 divisors (see below), whose sum is σ = 29846550384. Its totient is φ = 5053383936.

The previous prime is 13423051393. The next prime is 13423051427. The reversal of 13423051420 is 2415032431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13423051427) 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, 19739442 + ... + 19740121.

It is an arithmetic number, because the mean of its divisors is an integer number (1243606266).

Almost surely, 2^13423051420 is an apocalyptic number.

13423051420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13423051420 is an abundant number, since it is smaller than the sum of its proper divisors (16423498964).

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

13423051420 is a wasteful number, since it uses less digits than its factorization.

13423051420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39479589 (or 39479587 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 13423051420 its reverse (2415032431), we get a palindrome (15838083851).

The spelling of 13423051420 in words is "thirteen billion, four hundred twenty-three million, fifty-one thousand, four hundred twenty".