2320123231 has 4 divisors (see below), whose sum is σ = 2442235000. Its totient is φ = 2198011464.

The previous prime is 2320123219. The next prime is 2320123259. The reversal of 2320123231 is 1323210232.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2320123231 - 2¹¹ = 2320121183 is a prime.

It is a super-2 number, since 2×2320123231² = 10765943614051758722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 122111749 = 2320123231 / (2 + 3 + 2 + 0 + 1 + 2 + 3 + 2 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2320123199 and 2320123208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2320123261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61055856 + ... + 61055893.

It is an arithmetic number, because the mean of its divisors is an integer number (610558750).

Almost surely, 2^2320123231 is an apocalyptic number.

2320123231 is a deficient number, since it is larger than the sum of its proper divisors (122111769).

2320123231 is a wasteful number, since it uses less digits than its factorization.

2320123231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122111768.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 2320123231 is about 48167.6575203736. The cubic root of 2320123231 is about 1323.8446282433.

Adding to 2320123231 its reverse (1323210232), we get a palindrome (3643333463).

The spelling of 2320123231 in words is "two billion, three hundred twenty million, one hundred twenty-three thousand, two hundred thirty-one".