233540430433421 has 8 divisors (see below), whose sum is σ = 245840644090080. Its totient is φ = 221241077982288.

The previous prime is 233540430433369. The next prime is 233540430433423. The reversal of 233540430433421 is 124334034045332.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-233540430433421 is a prime.

It is a super-2 number, since 2×233540430433421² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233540430433423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214744706 + ... + 215829491.

It is an arithmetic number, because the mean of its divisors is an integer number (30730080511260).

Almost surely, 2^{233540430433421} is an apocalyptic number.

It is an amenable number.

233540430433421 is a deficient number, since it is larger than the sum of its proper divisors (12300213656659).

233540430433421 is a wasteful number, since it uses less digits than its factorization.

233540430433421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430602763.

The product of its (nonzero) digits is 1244160, while the sum is 41.

Adding to 233540430433421 its reverse (124334034045332), we get a palindrome (357874464478753).

The spelling of 233540430433421 in words is "two hundred thirty-three trillion, five hundred forty billion, four hundred thirty million, four hundred thirty-three thousand, four hundred twenty-one".