20112435103 has 2 divisors, whose sum is σ = 20112435104. Its totient is φ = 20112435102.

The previous prime is 20112435073. The next prime is 20112435127. The reversal of 20112435103 is 30153421102.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20112435103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20112435403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10056217551 + 10056217552.

It is an arithmetic number, because the mean of its divisors is an integer number (10056217552).

Almost surely, 2^20112435103 is an apocalyptic number.

20112435103 is a deficient number, since it is larger than the sum of its proper divisors (1).

20112435103 is an equidigital number, since it uses as much as digits as its factorization.

20112435103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 20112435103 its reverse (30153421102), we get a palindrome (50265856205).

The spelling of 20112435103 in words is "twenty billion, one hundred twelve million, four hundred thirty-five thousand, one hundred three".