121333031023 has 4 divisors (see below), whose sum is σ = 128470268160. Its totient is φ = 114195793888.

The previous prime is 121333031021. The next prime is 121333031041. The reversal of 121333031023 is 320130333121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 320130333121 = 313 ⋅1022780617.

It is a cyclic number.

It is not a de Polignac number, because 121333031023 - 2¹ = 121333031021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121333030985 and 121333031003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121333031021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3568618543 + ... + 3568618576.

It is an arithmetic number, because the mean of its divisors is an integer number (32117567040).

Almost surely, 2^121333031023 is an apocalyptic number.

121333031023 is a deficient number, since it is larger than the sum of its proper divisors (7137237137).

121333031023 is an equidigital number, since it uses as much as digits as its factorization.

121333031023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7137237136.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 121333031023 its reverse (320130333121), we get a palindrome (441463364144).

The spelling of 121333031023 in words is "one hundred twenty-one billion, three hundred thirty-three million, thirty-one thousand, twenty-three".