10121112103 has 2 divisors, whose sum is σ = 10121112104. Its totient is φ = 10121112102.

The previous prime is 10121112091. The next prime is 10121112137. The reversal of 10121112103 is 30121112101.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10121112103 - 2²⁵ = 10087557671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10121152103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5060556051 + 5060556052.

It is an arithmetic number, because the mean of its divisors is an integer number (5060556052).

Almost surely, 2^10121112103 is an apocalyptic number.

10121112103 is a deficient number, since it is larger than the sum of its proper divisors (1).

10121112103 is an equidigital number, since it uses as much as digits as its factorization.

10121112103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 10121112103 its reverse (30121112101), we get a palindrome (40242224204).

The spelling of 10121112103 in words is "ten billion, one hundred twenty-one million, one hundred twelve thousand, one hundred three".