13203025134121 has 4 divisors (see below), whose sum is σ = 13426805221200. Its totient is φ = 12979245047044.

The previous prime is 13203025134113. The next prime is 13203025134137. The reversal of 13203025134121 is 12143152030231.

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 a cyclic number.

It is not a de Polignac number, because 13203025134121 - 2³ = 13203025134113 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13203025134121.

It is not an unprimeable number, because it can be changed into a prime (13203025134721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111890043451 + ... + 111890043568.

It is an arithmetic number, because the mean of its divisors is an integer number (3356701305300).

Almost surely, 2^{13203025134121} is an apocalyptic number.

It is an amenable number.

13203025134121 is a deficient number, since it is larger than the sum of its proper divisors (223780087079).

13203025134121 is an equidigital number, since it uses as much as digits as its factorization.

13203025134121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223780087078.

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

Adding to 13203025134121 its reverse (12143152030231), we get a palindrome (25346177164352).

The spelling of 13203025134121 in words is "thirteen trillion, two hundred three billion, twenty-five million, one hundred thirty-four thousand, one hundred twenty-one".