231532420113533 has 8 divisors (see below), whose sum is σ = 288663796505280. Its totient is φ = 180414872815680.

The previous prime is 231532420113499. The next prime is 231532420113541. The reversal of 231532420113533 is 335311024235132.

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

It is a cyclic number.

It is not a de Polignac number, because 231532420113533 - 2¹⁰ = 231532420112509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231532420113583) 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, 1503457273388 + ... + 1503457273541.

It is an arithmetic number, because the mean of its divisors is an integer number (36082974563160).

Almost surely, 2^{231532420113533} is an apocalyptic number.

It is an amenable number.

231532420113533 is a deficient number, since it is larger than the sum of its proper divisors (57131376391747).

231532420113533 is a wasteful number, since it uses less digits than its factorization.

231532420113533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3006914546947.

The product of its (nonzero) digits is 194400, while the sum is 38.

Adding to 231532420113533 its reverse (335311024235132), we get a palindrome (566843444348665).

The spelling of 231532420113533 in words is "two hundred thirty-one trillion, five hundred thirty-two billion, four hundred twenty million, one hundred thirteen thousand, five hundred thirty-three".