5105421021311 has 4 divisors (see below), whose sum is σ = 5498145715272. Its totient is φ = 4712696327352.

The previous prime is 5105421021271. The next prime is 5105421021331. The reversal of 5105421021311 is 1131201245015.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 5105421021311 - 2⁶ = 5105421021247 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 (5105421021331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196362346961 + ... + 196362346986.

It is an arithmetic number, because the mean of its divisors is an integer number (1374536428818).

Almost surely, 2^{5105421021311} is an apocalyptic number.

5105421021311 is a deficient number, since it is larger than the sum of its proper divisors (392724693961).

5105421021311 is a wasteful number, since it uses less digits than its factorization.

5105421021311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392724693960.

The product of its (nonzero) digits is 1200, while the sum is 26.

Adding to 5105421021311 its reverse (1131201245015), we get a palindrome (6236622266326).

The spelling of 5105421021311 in words is "five trillion, one hundred five billion, four hundred twenty-one million, twenty-one thousand, three hundred eleven".