121110010011 has 6 divisors (see below), whose sum is σ = 174936681140. Its totient is φ = 80740006668.

The previous prime is 121110009973. The next prime is 121110010031. The reversal of 121110010011 is 110010011121.

It is not a de Polignac number, because 121110010011 - 2¹⁸ = 121109747867 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 13456667779 = 121110010011 / (1 + 2 + 1 + 1 + 1 + 0 + 0 + 1 + 0 + 0 + 1 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121110009975 and 121110010002.

It is not an unprimeable number, because it can be changed into a prime (121110010031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6728333881 + ... + 6728333898.

Almost surely, 2^121110010011 is an apocalyptic number.

121110010011 is a deficient number, since it is larger than the sum of its proper divisors (53826671129).

121110010011 is a wasteful number, since it uses less digits than its factorization.

121110010011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13456667785 (or 13456667782 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 121110010011 its reverse (110010011121), we get a palindrome (231120021132).

It can be divided in two parts, 121 and 110010011, that multiplied together give a palindrome (13311211331).

The spelling of 121110010011 in words is "one hundred twenty-one billion, one hundred ten million, ten thousand, eleven".