12021010103 has 2 divisors, whose sum is σ = 12021010104. Its totient is φ = 12021010102.

The previous prime is 12021010073. The next prime is 12021010163. The reversal of 12021010103 is 30101012021.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12021010103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12021010163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6010505051 + 6010505052.

It is an arithmetic number, because the mean of its divisors is an integer number (6010505052).

Almost surely, 2^12021010103 is an apocalyptic number.

12021010103 is a deficient number, since it is larger than the sum of its proper divisors (1).

12021010103 is an equidigital number, since it uses as much as digits as its factorization.

12021010103 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 11.

Adding to 12021010103 its reverse (30101012021), we get a palindrome (42122022124).

The spelling of 12021010103 in words is "twelve billion, twenty-one million, ten thousand, one hundred three".