20125111241 has 16 divisors (see below), whose sum is σ = 21639115008. Its totient is φ = 18648537600.

The previous prime is 20125111217. The next prime is 20125111243. The reversal of 20125111241 is 14211152102.

It is a de Polignac number, because none of the positive numbers 2^k-20125111241 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20125111243) 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 15 ways as a sum of consecutive naturals, for example, 885581 + ... + 908021.

It is an arithmetic number, because the mean of its divisors is an integer number (1352444688).

Almost surely, 2^20125111241 is an apocalyptic number.

It is an amenable number.

20125111241 is a deficient number, since it is larger than the sum of its proper divisors (1514003767).

20125111241 is a wasteful number, since it uses less digits than its factorization.

20125111241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23272.

The product of its (nonzero) digits is 160, while the sum is 20.

Adding to 20125111241 its reverse (14211152102), we get a palindrome (34336263343).

The spelling of 20125111241 in words is "twenty billion, one hundred twenty-five million, one hundred eleven thousand, two hundred forty-one".