1211403242107 has 2 divisors, whose sum is σ = 1211403242108. Its totient is φ = 1211403242106.

The previous prime is 1211403242059. The next prime is 1211403242141. The reversal of 1211403242107 is 7012423041121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1211403242107 is a prime.

It is a super-3 number, since 3×1211403242107³ (a number of 37 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1211403242177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605701621053 + 605701621054.

It is an arithmetic number, because the mean of its divisors is an integer number (605701621054).

Almost surely, 2^{1211403242107} is an apocalyptic number.

1211403242107 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211403242107 is an equidigital number, since it uses as much as digits as its factorization.

1211403242107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 28.

Adding to 1211403242107 its reverse (7012423041121), we get a palindrome (8223826283228).

The spelling of 1211403242107 in words is "one trillion, two hundred eleven billion, four hundred three million, two hundred forty-two thousand, one hundred seven".