13121133154203 has 16 divisors (see below), whose sum is σ = 18073960482816. Its totient is φ = 8458325416320.

The previous prime is 13121133154193. The next prime is 13121133154267. The reversal of 13121133154203 is 30245133112131.

It is not a de Polignac number, because 13121133154203 - 2⁹ = 13121133153691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13121133154273) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57567150 + ... + 57794627.

It is an arithmetic number, because the mean of its divisors is an integer number (1129622530176).

Almost surely, 2^{13121133154203} is an apocalyptic number.

13121133154203 is a deficient number, since it is larger than the sum of its proper divisors (4952827328613).

13121133154203 is a wasteful number, since it uses less digits than its factorization.

13121133154203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115363034.

The product of its (nonzero) digits is 6480, while the sum is 30.

Adding to 13121133154203 its reverse (30245133112131), we get a palindrome (43366266266334).

The spelling of 13121133154203 in words is "thirteen trillion, one hundred twenty-one billion, one hundred thirty-three million, one hundred fifty-four thousand, two hundred three".