13123301121 has 48 divisors (see below), whose sum is σ = 22819655040. Its totient is φ = 7099488000.

The previous prime is 13123301111. The next prime is 13123301201. The reversal of 13123301121 is 12110332131.

13123301121 is a `hidden beast` number, since 1 + 312 + 330 + 1 + 1 + 21 = 666.

It is not a de Polignac number, because 13123301121 - 2²¹ = 13121203969 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13123301094 and 13123301103.

It is not an unprimeable number, because it can be changed into a prime (13123301111) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2382871 + ... + 2388371.

It is an arithmetic number, because the mean of its divisors is an integer number (475409480).

Almost surely, 2^13123301121 is an apocalyptic number.

It is an amenable number.

13123301121 is a deficient number, since it is larger than the sum of its proper divisors (9696353919).

13123301121 is a wasteful number, since it uses less digits than its factorization.

13123301121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7526 (or 7523 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 13123301121 its reverse (12110332131), we get a palindrome (25233633252).

The spelling of 13123301121 in words is "thirteen billion, one hundred twenty-three million, three hundred one thousand, one hundred twenty-one".