13105412012021 has 8 divisors (see below), whose sum is σ = 15025465531584. Its totient is φ = 11197321443360.

The previous prime is 13105412011973. The next prime is 13105412012027. The reversal of 13105412012021 is 12021021450131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13105412012021 - 2¹⁰ = 13105412010997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13105412012027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2990735375 + ... + 2990739756.

It is an arithmetic number, because the mean of its divisors is an integer number (1878183191448).

Almost surely, 2^{13105412012021} is an apocalyptic number.

It is an amenable number.

13105412012021 is a deficient number, since it is larger than the sum of its proper divisors (1920053519563).

13105412012021 is an equidigital number, since it uses as much as digits as its factorization.

13105412012021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5981475451.

The product of its (nonzero) digits is 480, while the sum is 23.

Adding to 13105412012021 its reverse (12021021450131), we get a palindrome (25126433462152).

The spelling of 13105412012021 in words is "thirteen trillion, one hundred five billion, four hundred twelve million, twelve thousand, twenty-one".