121011000011 has 4 divisors (see below), whose sum is σ = 132012000024. Its totient is φ = 110010000000.

The previous prime is 121011000007. The next prime is 121011000017. The reversal of 121011000011 is 110000110121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121011000011 - 2² = 121011000007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121011000017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5500499990 + ... + 5500500011.

It is an arithmetic number, because the mean of its divisors is an integer number (33003000006).

Almost surely, 2^121011000011 is an apocalyptic number.

121011000011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

121011000011 is a deficient number, since it is larger than the sum of its proper divisors (11001000013).

121011000011 is a wasteful number, since it uses less digits than its factorization.

121011000011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11001000012.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 121011000011 its reverse (110000110121), we get a palindrome (231011110132).

The spelling of 121011000011 in words is "one hundred twenty-one billion, eleven million, eleven", and thus it is an aban number.