13521230025430 has 16 divisors (see below), whose sum is σ = 24611677126560. Its totient is φ = 5347722436672.

The previous prime is 13521230025427. The next prime is 13521230025437. The reversal of 13521230025430 is 3452003212531.

It is a super-2 number, since 2×13521230025430² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13521230025392 and 13521230025401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13521230025437) 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 7 ways as a sum of consecutive naturals, for example, 7596195754 + ... + 7596197533.

It is an arithmetic number, because the mean of its divisors is an integer number (1538229820410).

Almost surely, 2^{13521230025430} is an apocalyptic number.

13521230025430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13521230025430 is a deficient number, since it is larger than the sum of its proper divisors (11090447101130).

13521230025430 is a wasteful number, since it uses less digits than its factorization.

13521230025430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15192393383.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 13521230025430 its reverse (3452003212531), we get a palindrome (16973233237961).

The spelling of 13521230025430 in words is "thirteen trillion, five hundred twenty-one billion, two hundred thirty million, twenty-five thousand, four hundred thirty".