231061233 has 8 divisors (see below), whose sum is σ = 331780288. Its totient is φ = 142191504.

The previous prime is 231061213. The next prime is 231061249. The reversal of 231061233 is 332160132.

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

It is not a de Polignac number, because 231061233 - 2¹² = 231057137 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (231061213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2962285 + ... + 2962362.

It is an arithmetic number, because the mean of its divisors is an integer number (41472536).

Almost surely, 2^231061233 is an apocalyptic number.

It is an amenable number.

231061233 is a deficient number, since it is larger than the sum of its proper divisors (100719055).

231061233 is a wasteful number, since it uses less digits than its factorization.

231061233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5924663.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 231061233 is about 15200.6984379008. The cubic root of 231061233 is about 613.6334546135.

The spelling of 231061233 in words is "two hundred thirty-one million, sixty-one thousand, two hundred thirty-three".