231313020233 has 8 divisors (see below), whose sum is σ = 244928936448. Its totient is φ = 217698133824.

The previous prime is 231313020229. The next prime is 231313020293. The reversal of 231313020233 is 332020313132.

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 231313020233 - 2² = 231313020229 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231313020199 and 231313020208.

It is not an unprimeable number, because it can be changed into a prime (231313020293) 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, 231560 + ... + 718502.

It is an arithmetic number, because the mean of its divisors is an integer number (30616117056).

Almost surely, 2^231313020233 is an apocalyptic number.

It is an amenable number.

231313020233 is a deficient number, since it is larger than the sum of its proper divisors (13615916215).

231313020233 is a wasteful number, since it uses less digits than its factorization.

231313020233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514903.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 231313020233 its reverse (332020313132), we get a palindrome (563333333365).

The spelling of 231313020233 in words is "two hundred thirty-one billion, three hundred thirteen million, twenty thousand, two hundred thirty-three".