121013021023111 has 16 divisors (see below), whose sum is σ = 144329112797184. Its totient is φ = 99205024083264.

The previous prime is 121013021023093. The next prime is 121013021023159. The reversal of 121013021023111 is 111320120310121.

It is a cyclic number.

It is not a de Polignac number, because 121013021023111 - 2⁵ = 121013021023079 is a prime.

It is a super-2 number, since 2×121013021023111² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121013021023211) 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, 38720206 + ... + 41728651.

It is an arithmetic number, because the mean of its divisors is an integer number (9020569549824).

Almost surely, 2^{121013021023111} is an apocalyptic number.

121013021023111 is a deficient number, since it is larger than the sum of its proper divisors (23316091774073).

121013021023111 is an equidigital number, since it uses as much as digits as its factorization.

121013021023111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80458230.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 121013021023111 its reverse (111320120310121), we get a palindrome (232333141333232).

The spelling of 121013021023111 in words is "one hundred twenty-one trillion, thirteen billion, twenty-one million, twenty-three thousand, one hundred eleven".