26353430121 has 4 divisors (see below), whose sum is σ = 35137906832. Its totient is φ = 17568953412.

The previous prime is 26353430111. The next prime is 26353430161. The reversal of 26353430121 is 12103435362.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 26353430121 - 2¹⁰ = 26353429097 is a prime.

It is a super-3 number, since 3×26353430121³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26353430111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4392238351 + ... + 4392238356.

It is an arithmetic number, because the mean of its divisors is an integer number (8784476708).

Almost surely, 2^26353430121 is an apocalyptic number.

It is an amenable number.

26353430121 is a deficient number, since it is larger than the sum of its proper divisors (8784476711).

26353430121 is an equidigital number, since it uses as much as digits as its factorization.

26353430121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8784476710.

The product of its (nonzero) digits is 12960, while the sum is 30.

Adding to 26353430121 its reverse (12103435362), we get a palindrome (38456865483).

The spelling of 26353430121 in words is "twenty-six billion, three hundred fifty-three million, four hundred thirty thousand, one hundred twenty-one".