125112101 has 4 divisors (see below), whose sum is σ = 125210304. Its totient is φ = 125013900.

The previous prime is 125112083. The next prime is 125112103. The reversal of 125112101 is 101211521.

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 a de Polignac number, because none of the positive numbers 2^k-125112101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125112103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47165 + ... + 49746.

It is an arithmetic number, because the mean of its divisors is an integer number (31302576).

Almost surely, 2^125112101 is an apocalyptic number.

It is an amenable number.

125112101 is a deficient number, since it is larger than the sum of its proper divisors (98203).

125112101 is an equidigital number, since it uses as much as digits as its factorization.

125112101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98202.

The product of its (nonzero) digits is 20, while the sum is 14.

The square root of 125112101 is about 11185.3520731357. The cubic root of 125112101 is about 500.1494233409.

Adding to 125112101 its reverse (101211521), we get a palindrome (226323622).

The spelling of 125112101 in words is "one hundred twenty-five million, one hundred twelve thousand, one hundred one".