2011351222123 has 2 divisors, whose sum is σ = 2011351222124. Its totient is φ = 2011351222122.

The previous prime is 2011351222099. The next prime is 2011351222169. The reversal of 2011351222123 is 3212221531102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2011351222123 - 2¹³ = 2011351213931 is a prime.

It is not a weakly prime, because it can be changed into another prime (2011351222193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005675611061 + 1005675611062.

It is an arithmetic number, because the mean of its divisors is an integer number (1005675611062).

Almost surely, 2^{2011351222123} is an apocalyptic number.

2011351222123 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011351222123 is an equidigital number, since it uses as much as digits as its factorization.

2011351222123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 2011351222123 its reverse (3212221531102), we get a palindrome (5223572753225).

The spelling of 2011351222123 in words is "two trillion, eleven billion, three hundred fifty-one million, two hundred twenty-two thousand, one hundred twenty-three".