231112445 has 4 divisors (see below), whose sum is σ = 277334940. Its totient is φ = 184889952.

The previous prime is 231112429. The next prime is 231112477. The reversal of 231112445 is 544211132.

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 39400729 + 191711716 = 6277^2 + 13846^2 .

It is a cyclic number.

It is not a de Polignac number, because 231112445 - 2⁴ = 231112429 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231112445.

It is a congruent 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, 23111240 + ... + 23111249.

It is an arithmetic number, because the mean of its divisors is an integer number (69333735).

Almost surely, 2^231112445 is an apocalyptic number.

It is an amenable number.

231112445 is a deficient number, since it is larger than the sum of its proper divisors (46222495).

231112445 is an equidigital number, since it uses as much as digits as its factorization.

231112445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46222494.

The product of its digits is 960, while the sum is 23.

The square root of 231112445 is about 15202.3828724315. The cubic root of 231112445 is about 613.6787861398.

Adding to 231112445 its reverse (544211132), we get a palindrome (775323577).

The spelling of 231112445 in words is "two hundred thirty-one million, one hundred twelve thousand, four hundred forty-five".