71424711102421 has 4 divisors (see below), whose sum is σ = 71424731775712. Its totient is φ = 71424690429132.

The previous prime is 71424711102361. The next prime is 71424711102443. The reversal of 71424711102421 is 12420111742417.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 71424711102421 - 2⁷ = 71424711102293 is a prime.

It is a super-2 number, since 2×71424711102421² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71424711102221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3759075 + ... + 12529168.

It is an arithmetic number, because the mean of its divisors is an integer number (17856182943928).

Almost surely, 2^{71424711102421} is an apocalyptic number.

It is an amenable number.

71424711102421 is a deficient number, since it is larger than the sum of its proper divisors (20673291).

71424711102421 is a wasteful number, since it uses less digits than its factorization.

71424711102421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20673290.

The product of its (nonzero) digits is 25088, while the sum is 37.

Adding to 71424711102421 its reverse (12420111742417), we get a palindrome (83844822844838).

The spelling of 71424711102421 in words is "seventy-one trillion, four hundred twenty-four billion, seven hundred eleven million, one hundred two thousand, four hundred twenty-one".