21325102030435 has 32 divisors (see below), whose sum is σ = 29311465231872. Its totient is φ = 14590125146880.

The previous prime is 21325102030423. The next prime is 21325102030513. The reversal of 21325102030435 is 53403020152312.

It is a de Polignac number, because none of the positive numbers 2^k-21325102030435 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21325102030397 and 21325102030406.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 521592504 + ... + 521633386.

It is an arithmetic number, because the mean of its divisors is an integer number (915983288496).

Almost surely, 2^{21325102030435} is an apocalyptic number.

21325102030435 is a deficient number, since it is larger than the sum of its proper divisors (7986363201437).

21325102030435 is a wasteful number, since it uses less digits than its factorization.

21325102030435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73963.

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

Adding to 21325102030435 its reverse (53403020152312), we get a palindrome (74728122182747).

The spelling of 21325102030435 in words is "twenty-one trillion, three hundred twenty-five billion, one hundred two million, thirty thousand, four hundred thirty-five".