20125111183 has 2 divisors, whose sum is σ = 20125111184. Its totient is φ = 20125111182.

The previous prime is 20125111169. The next prime is 20125111189. The reversal of 20125111183 is 38111152102.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20125111183 is a prime.

It is a super-2 number, since 2×20125111183² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20125111189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10062555591 + 10062555592.

It is an arithmetic number, because the mean of its divisors is an integer number (10062555592).

Almost surely, 2^20125111183 is an apocalyptic number.

20125111183 is a deficient number, since it is larger than the sum of its proper divisors (1).

20125111183 is an equidigital number, since it uses as much as digits as its factorization.

20125111183 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 25.

Adding to 20125111183 its reverse (38111152102), we get a palindrome (58236263285).

The spelling of 20125111183 in words is "twenty billion, one hundred twenty-five million, one hundred eleven thousand, one hundred eighty-three".