121000111001011 has 8 divisors (see below), whose sum is σ = 132003130716864. Its totient is φ = 109997592889320.

The previous prime is 121000111000973. The next prime is 121000111001023. The reversal of 121000111001011 is 110100111000121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121000111001011 - 2⁹ = 121000111000499 is a prime.

It is a super-4 number, since 4×121000111001011⁴ (a number of 57 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (121000111001111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124896565 + ... + 125861638.

It is an arithmetic number, because the mean of its divisors is an integer number (16500391339608).

Almost surely, 2^{121000111001011} is an apocalyptic number.

121000111001011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

121000111001011 is a deficient number, since it is larger than the sum of its proper divisors (11003019715853).

121000111001011 is a wasteful number, since it uses less digits than its factorization.

121000111001011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250802081.

The product of its (nonzero) digits is 2, while the sum is 10.

Adding to 121000111001011 its reverse (110100111000121), we get a palindrome (231100222001132).

The spelling of 121000111001011 in words is "one hundred twenty-one trillion, one hundred eleven million, one thousand, eleven".