13142041421 has 4 divisors (see below), whose sum is σ = 13157933472. Its totient is φ = 13126149372.

The previous prime is 13142041417. The next prime is 13142041499. The reversal of 13142041421 is 12414024131.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12414024131 = 47 ⋅264128173.

It is a cyclic number.

It is not a de Polignac number, because 13142041421 - 2² = 13142041417 is a prime.

It is a super-2 number, since 2×13142041421² (a number of 21 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 (13142041021) 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, 7944785 + ... + 7946438.

It is an arithmetic number, because the mean of its divisors is an integer number (3289483368).

Almost surely, 2^13142041421 is an apocalyptic number.

It is an amenable number.

13142041421 is a deficient number, since it is larger than the sum of its proper divisors (15892051).

13142041421 is an equidigital number, since it uses as much as digits as its factorization.

13142041421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15892050.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 13142041421 its reverse (12414024131), we get a palindrome (25556065552).

The spelling of 13142041421 in words is "thirteen billion, one hundred forty-two million, forty-one thousand, four hundred twenty-one".