121023320121 has 12 divisors (see below), whose sum is σ = 190703413680. Its totient is φ = 73347466680.

The previous prime is 121023320111. The next prime is 121023320149.

121023320121 is a `hidden beast` number, since 1 + 210 + 2 + 332 + 0 + 121 = 666.

121023320121 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 121023320121 - 2³³ = 112433385529 is a prime.

It is a super-2 number, since 2×121023320121² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121023320094 and 121023320103.

It is not an unprimeable number, because it can be changed into a prime (121023320111) 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 11 ways as a sum of consecutive naturals, for example, 611228791 + ... + 611228988.

It is an arithmetic number, because the mean of its divisors is an integer number (15891951140).

Almost surely, 2^121023320121 is an apocalyptic number.

121023320121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121023320121 is a deficient number, since it is larger than the sum of its proper divisors (69680093559).

121023320121 is a wasteful number, since it uses less digits than its factorization.

121023320121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1222457796 (or 1222457793 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

It can be divided in two parts, 121023 and 320121, that added together give a palindrome (441144).

The spelling of 121023320121 in words is "one hundred twenty-one billion, twenty-three million, three hundred twenty thousand, one hundred twenty-one".