434223132021 has 128 divisors (see below), whose sum is σ = 778534502400. Its totient is φ = 233928414720.

The previous prime is 434223131971. The next prime is 434223132037. The reversal of 434223132021 is 120231322434.

434223132021 is a `hidden beast` number, since 4 + 3 + 422 + 31 + 3 + 202 + 1 = 666.

It is not a de Polignac number, because 434223132021 - 2¹⁰ = 434223130997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434223132221) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 126483321 + ... + 126486753.

It is an arithmetic number, because the mean of its divisors is an integer number (6082300800).

Almost surely, 2^434223132021 is an apocalyptic number.

It is an amenable number.

434223132021 is a deficient number, since it is larger than the sum of its proper divisors (344311370379).

434223132021 is a wasteful number, since it uses less digits than its factorization.

434223132021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4016 (or 4010 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 434223132021 its reverse (120231322434), we get a palindrome (554454454455).

The spelling of 434223132021 in words is "four hundred thirty-four billion, two hundred twenty-three million, one hundred thirty-two thousand, twenty-one".