13021004155435 has 8 divisors (see below), whose sum is σ = 15957656156736. Its totient is φ = 10195169210880.

The previous prime is 13021004155339. The next prime is 13021004155459. The reversal of 13021004155435 is 53455140012031.

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

It is not a de Polignac number, because 13021004155435 - 2⁹ = 13021004154923 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 13021004155435.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27704263926 + ... + 27704264395.

It is an arithmetic number, because the mean of its divisors is an integer number (1994707019592).

Almost surely, 2^{13021004155435} is an apocalyptic number.

13021004155435 is a deficient number, since it is larger than the sum of its proper divisors (2936652001301).

13021004155435 is an equidigital number, since it uses as much as digits as its factorization.

13021004155435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55408528373.

The product of its (nonzero) digits is 36000, while the sum is 34.

Adding to 13021004155435 its reverse (53455140012031), we get a palindrome (66476144167466).

The spelling of 13021004155435 in words is "thirteen trillion, twenty-one billion, four million, one hundred fifty-five thousand, four hundred thirty-five".