2331144505 has 4 divisors (see below), whose sum is σ = 2797373412. Its totient is φ = 1864915600.

The previous prime is 2331144481. The next prime is 2331144511. The reversal of 2331144505 is 5054411332.

2331144505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 529736256 + 1801408249 = 23016^2 + 42443^2 .

It is not a de Polignac number, because 2331144505 - 2⁷ = 2331144377 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233114446 + ... + 233114455.

It is an arithmetic number, because the mean of its divisors is an integer number (699343353).

Almost surely, 2^2331144505 is an apocalyptic number.

It is an amenable number.

2331144505 is a deficient number, since it is larger than the sum of its proper divisors (466228907).

2331144505 is an equidigital number, since it uses as much as digits as its factorization.

2331144505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466228906.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 2331144505 is about 48281.9273124013. The cubic root of 2331144505 is about 1325.9375360636.

Adding to 2331144505 its reverse (5054411332), we get a palindrome (7385555837).

The spelling of 2331144505 in words is "two billion, three hundred thirty-one million, one hundred forty-four thousand, five hundred five".