13121011242423 has 64 divisors (see below), whose sum is σ = 22245751091200. Its totient is φ = 7487504529120.

The previous prime is 13121011242419. The next prime is 13121011242473. The reversal of 13121011242423 is 32424211012131.

13121011242423 is a `hidden beast` number, since 1 + 3 + 1 + 210 + 1 + 1 + 2 + 424 + 23 = 666.

It is not a de Polignac number, because 13121011242423 - 2² = 13121011242419 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13121011242473) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1204751808 + ... + 1204762698.

It is an arithmetic number, because the mean of its divisors is an integer number (347589860800).

Almost surely, 2^{13121011242423} is an apocalyptic number.

13121011242423 is a deficient number, since it is larger than the sum of its proper divisors (9124739848777).

13121011242423 is a wasteful number, since it uses less digits than its factorization.

13121011242423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19009 (or 19003 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

Adding to 13121011242423 its reverse (32424211012131), we get a palindrome (45545222254554).

The spelling of 13121011242423 in words is "thirteen trillion, one hundred twenty-one billion, eleven million, two hundred forty-two thousand, four hundred twenty-three".