20125113 has 4 divisors (see below), whose sum is σ = 26833488. Its totient is φ = 13416740.

The previous prime is 20125109. The next prime is 20125117. The reversal of 20125113 is 31152102.

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 an interprime number because it is at equal distance from previous prime (20125109) and next prime (20125117).

It is a cyclic number.

It is not a de Polignac number, because 20125113 - 2² = 20125109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20125092 and 20125101.

It is not an unprimeable number, because it can be changed into a prime (20125117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3354183 + ... + 3354188.

It is an arithmetic number, because the mean of its divisors is an integer number (6708372).

Almost surely, 2^20125113 is an apocalyptic number.

It is an amenable number.

20125113 is a deficient number, since it is larger than the sum of its proper divisors (6708375).

20125113 is an equidigital number, since it uses as much as digits as its factorization.

20125113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6708374.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 20125113 is about 4486.1022057015. The cubic root of 20125113 is about 272.0066003661.

Adding to 20125113 its reverse (31152102), we get a palindrome (51277215).

The spelling of 20125113 in words is "twenty million, one hundred twenty-five thousand, one hundred thirteen".