1031211223103 has 2 divisors, whose sum is σ = 1031211223104. Its totient is φ = 1031211223102.

The previous prime is 1031211223079. The next prime is 1031211223117. The reversal of 1031211223103 is 3013221121301.

It is a happy number.

1031211223103 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1031211223103 - 2¹⁰ = 1031211222079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1031211223183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515605611551 + 515605611552.

It is an arithmetic number, because the mean of its divisors is an integer number (515605611552).

Almost surely, 2^{1031211223103} is an apocalyptic number.

1031211223103 is a deficient number, since it is larger than the sum of its proper divisors (1).

1031211223103 is an equidigital number, since it uses as much as digits as its factorization.

1031211223103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1031211223103 its reverse (3013221121301), we get a palindrome (4044432344404).

The spelling of 1031211223103 in words is "one trillion, thirty-one billion, two hundred eleven million, two hundred twenty-three thousand, one hundred three".