121123103311 has 16 divisors (see below), whose sum is σ = 142978121728. Its totient is φ = 100410062400.

The previous prime is 121123103303. The next prime is 121123103329. The reversal of 121123103311 is 113301321121.

It is a cyclic number.

It is not a de Polignac number, because 121123103311 - 2³ = 121123103303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121123103011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 193051 + ... + 528691.

It is an arithmetic number, because the mean of its divisors is an integer number (8936132608).

Almost surely, 2^121123103311 is an apocalyptic number.

121123103311 is a deficient number, since it is larger than the sum of its proper divisors (21855018417).

121123103311 is a wasteful number, since it uses less digits than its factorization.

121123103311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337342.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 121123103311 its reverse (113301321121), we get a palindrome (234424424432).

The spelling of 121123103311 in words is "one hundred twenty-one billion, one hundred twenty-three million, one hundred three thousand, three hundred eleven".