21103467429 has 32 divisors (see below), whose sum is σ = 32512886784. Its totient is φ = 12033447680.

The previous prime is 21103467367. The next prime is 21103467433. The reversal of 21103467429 is 92476430112.

It is a cyclic number.

It is not a de Polignac number, because 21103467429 - 2²³ = 21095078821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21103467439) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2398372 + ... + 2407154.

It is an arithmetic number, because the mean of its divisors is an integer number (1016027712).

Almost surely, 2^21103467429 is an apocalyptic number.

It is an amenable number.

21103467429 is a deficient number, since it is larger than the sum of its proper divisors (11409419355).

21103467429 is a wasteful number, since it uses less digits than its factorization.

21103467429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13097.

The product of its (nonzero) digits is 72576, while the sum is 39.

The spelling of 21103467429 in words is "twenty-one billion, one hundred three million, four hundred sixty-seven thousand, four hundred twenty-nine".