10340422421 has 48 divisors (see below), whose sum is σ = 12990801600. Its totient is φ = 8181347328.

The previous prime is 10340422387. The next prime is 10340422447. The reversal of 10340422421 is 12422404301.

10340422421 = T₁₄₅₅₃ + T₁₄₅₅₄ + ... + T₁₄₆₄₉.

It is not a de Polignac number, because 10340422421 - 2¹⁸ = 10340160277 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10340422451) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6049715 + ... + 6051423.

It is an arithmetic number, because the mean of its divisors is an integer number (270641700).

Almost surely, 2^10340422421 is an apocalyptic number.

It is an amenable number.

10340422421 is a deficient number, since it is larger than the sum of its proper divisors (2650379179).

10340422421 is a wasteful number, since it uses less digits than its factorization.

10340422421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1906 (or 1899 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 10340422421 its reverse (12422404301), we get a palindrome (22762826722).

The spelling of 10340422421 in words is "ten billion, three hundred forty million, four hundred twenty-two thousand, four hundred twenty-one".