13256000121430 has 64 divisors (see below), whose sum is σ = 26120795500800. Its totient is φ = 4803550300800.

The previous prime is 13256000121409. The next prime is 13256000121437. The reversal of 13256000121430 is 3412100065231.

13256000121430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13256000121437) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 153576585 + ... + 153662875.

It is an arithmetic number, because the mean of its divisors is an integer number (408137429700).

Almost surely, 2^{13256000121430} is an apocalyptic number.

13256000121430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13256000121430 is a deficient number, since it is larger than the sum of its proper divisors (12864795379370).

13256000121430 is a wasteful number, since it uses less digits than its factorization.

13256000121430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91165.

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 13256000121430 its reverse (3412100065231), we get a palindrome (16668100186661).

The spelling of 13256000121430 in words is "thirteen trillion, two hundred fifty-six billion, one hundred twenty-one thousand, four hundred thirty".