1331100125 has 8 divisors (see below), whose sum is σ = 1661213112. Its totient is φ = 1064880000.

The previous prime is 1331100097. The next prime is 1331100139. The reversal of 1331100125 is 5210011331.

It can be written as a sum of positive squares in 4 ways, for example, as 54967396 + 1276132729 = 7414^2 + 35723^2 .

It is not a de Polignac number, because 1331100125 - 2¹² = 1331096029 is a prime.

It is a Duffinian number.

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, 5324276 + ... + 5324525.

It is an arithmetic number, because the mean of its divisors is an integer number (207651639).

Almost surely, 2^1331100125 is an apocalyptic number.

It is an amenable number.

1331100125 is a deficient number, since it is larger than the sum of its proper divisors (330112987).

1331100125 is an equidigital number, since it uses as much as digits as its factorization.

1331100125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10648816 (or 10648806 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 1331100125 is about 36484.2448873483. The cubic root of 1331100125 is about 1100.0275819530.

Adding to 1331100125 its reverse (5210011331), we get a palindrome (6541111456).

The spelling of 1331100125 in words is "one billion, three hundred thirty-one million, one hundred thousand, one hundred twenty-five".