10125113081 has 4 divisors (see below), whose sum is σ = 10451729664. Its totient is φ = 9798496500.

The previous prime is 10125113077. The next prime is 10125113087. The reversal of 10125113081 is 18031152101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10125113081 - 2² = 10125113077 is a prime.

It is a super-2 number, since 2×10125113081² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10125113087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163308245 + ... + 163308306.

It is an arithmetic number, because the mean of its divisors is an integer number (2612932416).

Almost surely, 2^10125113081 is an apocalyptic number.

It is an amenable number.

10125113081 is a deficient number, since it is larger than the sum of its proper divisors (326616583).

10125113081 is an equidigital number, since it uses as much as digits as its factorization.

10125113081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326616582.

The product of its (nonzero) digits is 240, while the sum is 23.

Adding to 10125113081 its reverse (18031152101), we get a palindrome (28156265182).

The spelling of 10125113081 in words is "ten billion, one hundred twenty-five million, one hundred thirteen thousand, eighty-one".