111320541231025 has 81 divisors (see below), whose sum is σ = 161164962053739. Its totient is φ = 76054276740960.

The previous prime is 111320541231019. The next prime is 111320541231049. The reversal of 111320541231025 is 520132145023111.

The square root of 111320541231025 is 10550855.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 40075394843169 + 71245146387856 = 6330513^2 + 8440684^2 .

It is not a de Polignac number, because 111320541231025 - 2⁹ = 111320541230513 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 179839323166 + ... + 179839323784.

Almost surely, 2^{111320541231025} is an apocalyptic number.

111320541231025 is the 10550855-th square number.

111320541231025 is the 5275428-th centered octagonal number.

It is an amenable number.

111320541231025 is a deficient number, since it is larger than the sum of its proper divisors (49844420822714).

111320541231025 is an frugal number, since it uses more digits than its factorization.

111320541231025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2236 (or 1118 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 31.

Adding to 111320541231025 its reverse (520132145023111), we get a palindrome (631452686254136).

The spelling of 111320541231025 in words is "one hundred eleven trillion, three hundred twenty billion, five hundred forty-one million, two hundred thirty-one thousand, twenty-five".