231320110045 has 8 divisors (see below), whose sum is σ = 277600432824. Its totient is φ = 185045220864.

The previous prime is 231320110013. The next prime is 231320110057. The reversal of 231320110045 is 540011023132.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2535827449 + 228784282596 = 50357^2 + 478314^2 .

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 231320110045 - 2⁵ = 231320110013 is a prime.

It is a super-2 number, since 2×231320110045² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231320109998 and 231320110025.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1264144 + ... + 1435513.

It is an arithmetic number, because the mean of its divisors is an integer number (34700054103).

Almost surely, 2^231320110045 is an apocalyptic number.

It is an amenable number.

231320110045 is a deficient number, since it is larger than the sum of its proper divisors (46280322779).

231320110045 is a wasteful number, since it uses less digits than its factorization.

231320110045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2716799.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 231320110045 its reverse (540011023132), we get a palindrome (771331133177).

The spelling of 231320110045 in words is "two hundred thirty-one billion, three hundred twenty million, one hundred ten thousand, forty-five".