921401104129 has 12 divisors (see below), whose sum is σ = 1024488086832. Its totient is φ = 821832861200.

The previous prime is 921401104123. The next prime is 921401104147.

921401104129 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 921401104129 - 2³ = 921401104121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 921401104094 and 921401104103.

It is not an unprimeable number, because it can be changed into a prime (921401104121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14878987 + ... + 14940784.

It is an arithmetic number, because the mean of its divisors is an integer number (85374007236).

Almost surely, 2^921401104129 is an apocalyptic number.

It is an amenable number.

921401104129 is a deficient number, since it is larger than the sum of its proper divisors (103086982703).

921401104129 is a wasteful number, since it uses less digits than its factorization.

921401104129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29819888 (or 29819835 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 34.

The spelling of 921401104129 in words is "nine hundred twenty-one billion, four hundred one million, one hundred four thousand, one hundred twenty-nine".