12021031103 has 2 divisors, whose sum is σ = 12021031104. Its totient is φ = 12021031102.

The previous prime is 12021031097. The next prime is 12021031147. The reversal of 12021031103 is 30113012021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12021031103 - 2³⁰ = 10947289279 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12021031153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6010515551 + 6010515552.

It is an arithmetic number, because the mean of its divisors is an integer number (6010515552).

Almost surely, 2^12021031103 is an apocalyptic number.

12021031103 is a deficient number, since it is larger than the sum of its proper divisors (1).

12021031103 is an equidigital number, since it uses as much as digits as its factorization.

12021031103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 12021031103 its reverse (30113012021), we get a palindrome (42134043124).

The spelling of 12021031103 in words is "twelve billion, twenty-one million, thirty-one thousand, one hundred three".