231056543 has 8 divisors (see below), whose sum is σ = 239723280. Its totient is φ = 222436480.

The previous prime is 231056519. The next prime is 231056557. The reversal of 231056543 is 345650132.

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 231056543 - 2¹² = 231052447 is a prime.

It is a super-2 number, since 2×231056543² = 106774252126221698, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231056513) 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, 1418 + ... + 21543.

It is an arithmetic number, because the mean of its divisors is an integer number (29965410).

Almost surely, 2^231056543 is an apocalyptic number.

231056543 is a deficient number, since it is larger than the sum of its proper divisors (8666737).

231056543 is a wasteful number, since it uses less digits than its factorization.

231056543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23337.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 231056543 is about 15200.5441678908. The cubic root of 231056543 is about 613.6293028130.

The spelling of 231056543 in words is "two hundred thirty-one million, fifty-six thousand, five hundred forty-three".