1011211110103 has 2 divisors, whose sum is σ = 1011211110104. Its totient is φ = 1011211110102.

The previous prime is 1011211109999. The next prime is 1011211110157. The reversal of 1011211110103 is 3010111121101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1011211110103 - 2¹³ = 1011211101911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1011211110193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505605555051 + 505605555052.

It is an arithmetic number, because the mean of its divisors is an integer number (505605555052).

Almost surely, 2^{1011211110103} is an apocalyptic number.

1011211110103 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011211110103 is an equidigital number, since it uses as much as digits as its factorization.

1011211110103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6, while the sum is 13.

Adding to 1011211110103 its reverse (3010111121101), we get a palindrome (4021322231204).

The spelling of 1011211110103 in words is "one trillion, eleven billion, two hundred eleven million, one hundred ten thousand, one hundred three".