4023234031221 has 32 divisors (see below), whose sum is σ = 6035973292800. Its totient is φ = 2681248306464.

The previous prime is 4023234031211. The next prime is 4023234031249. The reversal of 4023234031221 is 1221304323204.

4023234031221 is a `hidden beast` number, since 4 + 0 + 2 + 3 + 2 + 340 + 312 + 2 + 1 = 666.

It is not a de Polignac number, because 4023234031221 - 2¹⁹ = 4023233506933 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4023234031211) 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, 6183400 + ... + 6803006.

It is an arithmetic number, because the mean of its divisors is an integer number (188624165400).

Almost surely, 2^{4023234031221} is an apocalyptic number.

It is an amenable number.

4023234031221 is a deficient number, since it is larger than the sum of its proper divisors (2012739261579).

4023234031221 is an frugal number, since it uses more digits than its factorization.

4023234031221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622597 (or 622579 counting only the distinct ones).

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

Adding to 4023234031221 its reverse (1221304323204), we get a palindrome (5244538354425).

The spelling of 4023234031221 in words is "four trillion, twenty-three billion, two hundred thirty-four million, thirty-one thousand, two hundred twenty-one".