231023212311 has 8 divisors (see below), whose sum is σ = 316356110704. Its totient is φ = 149852894400.

The previous prime is 231023212283. The next prime is 231023212319. The reversal of 231023212311 is 113212320132.

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

It is not a de Polignac number, because 231023212311 - 2¹³ = 231023204119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231023212319) 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, 1040644990 + ... + 1040645211.

It is an arithmetic number, because the mean of its divisors is an integer number (39544513838).

Almost surely, 2^231023212311 is an apocalyptic number.

231023212311 is a deficient number, since it is larger than the sum of its proper divisors (85332898393).

231023212311 is a wasteful number, since it uses less digits than its factorization.

231023212311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2081290241.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 231023212311 its reverse (113212320132), we get a palindrome (344235532443).

The spelling of 231023212311 in words is "two hundred thirty-one billion, twenty-three million, two hundred twelve thousand, three hundred eleven".