13422421429 has 4 divisors (see below), whose sum is σ = 13545563020. Its totient is φ = 13299279840.

The previous prime is 13422421373. The next prime is 13422421487. The reversal of 13422421429 is 92412422431.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8518920804 + 4903500625 = 92298^2 + 70025^2 .

It is a cyclic number.

It is not a de Polignac number, because 13422421429 - 2³³ = 4832486837 is a prime.

It is a super-2 number, since 2×13422421429² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13422421394 and 13422421403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13422421499) 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, 61570632 + ... + 61570849.

It is an arithmetic number, because the mean of its divisors is an integer number (3386390755).

Almost surely, 2^13422421429 is an apocalyptic number.

It is an amenable number.

13422421429 is a deficient number, since it is larger than the sum of its proper divisors (123141591).

13422421429 is a wasteful number, since it uses less digits than its factorization.

13422421429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123141590.

The product of its digits is 27648, while the sum is 34.

The spelling of 13422421429 in words is "thirteen billion, four hundred twenty-two million, four hundred twenty-one thousand, four hundred twenty-nine".