1111012121003 has 2 divisors, whose sum is σ = 1111012121004. Its totient is φ = 1111012121002.

The previous prime is 1111012120963. The next prime is 1111012121027. The reversal of 1111012121003 is 3001212101111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1111012121003 - 2⁸ = 1111012120747 is a prime.

It is not a weakly prime, because it can be changed into another prime (1111012121083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555506060501 + 555506060502.

It is an arithmetic number, because the mean of its divisors is an integer number (555506060502).

Almost surely, 2^{1111012121003} is an apocalyptic number.

1111012121003 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111012121003 is an equidigital number, since it uses as much as digits as its factorization.

1111012121003 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 14.

Adding to 1111012121003 its reverse (3001212101111), we get a palindrome (4112224222114).

The spelling of 1111012121003 in words is "one trillion, one hundred eleven billion, twelve million, one hundred twenty-one thousand, three".