233540324520421 has 16 divisors (see below), whose sum is σ = 239852995432960. Its totient is φ = 227314642688640.

The previous prime is 233540324520409. The next prime is 233540324520439. The reversal of 233540324520421 is 124025423045332.

233540324520421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 233540324520421 - 2⁵ = 233540324520389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233540324520121) 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, 1977016 + ... + 21702286.

It is an arithmetic number, because the mean of its divisors is an integer number (14990812214560).

Almost surely, 2^{233540324520421} is an apocalyptic number.

It is an amenable number.

233540324520421 is a deficient number, since it is larger than the sum of its proper divisors (6312670912539).

233540324520421 is a wasteful number, since it uses less digits than its factorization.

233540324520421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19727476.

The product of its (nonzero) digits is 691200, while the sum is 40.

Adding to 233540324520421 its reverse (124025423045332), we get a palindrome (357565747565753).

The spelling of 233540324520421 in words is "two hundred thirty-three trillion, five hundred forty billion, three hundred twenty-four million, five hundred twenty thousand, four hundred twenty-one".