233443041421 has 96 divisors (see below), whose sum is σ = 273806668800. Its totient is φ = 198459555840.

The previous prime is 233443041389. The next prime is 233443041449. The reversal of 233443041421 is 124140344332.

It is not a de Polignac number, because 233443041421 - 2⁵ = 233443041389 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233443011421) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1486898275 + ... + 1486898431.

It is an arithmetic number, because the mean of its divisors is an integer number (2852152800).

Almost surely, 2^233443041421 is an apocalyptic number.

It is an amenable number.

233443041421 is a deficient number, since it is larger than the sum of its proper divisors (40363627379).

233443041421 is a wasteful number, since it uses less digits than its factorization.

233443041421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407 (or 390 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 233443041421 its reverse (124140344332), we get a palindrome (357583385753).

The spelling of 233443041421 in words is "two hundred thirty-three billion, four hundred forty-three million, forty-one thousand, four hundred twenty-one".