434403112021 has 16 divisors (see below), whose sum is σ = 456874899840. Its totient is φ = 412239041280.

The previous prime is 434403112007. The next prime is 434403112081. The reversal of 434403112021 is 120211304434.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-434403112021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434403112081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2031361 + ... + 2235001.

It is an arithmetic number, because the mean of its divisors is an integer number (28554681240).

Almost surely, 2^434403112021 is an apocalyptic number.

It is an amenable number.

434403112021 is a deficient number, since it is larger than the sum of its proper divisors (22471787819).

434403112021 is a wasteful number, since it uses less digits than its factorization.

434403112021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204396.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 434403112021 its reverse (120211304434), we get a palindrome (554614416455).

The spelling of 434403112021 in words is "four hundred thirty-four billion, four hundred three million, one hundred twelve thousand, twenty-one".