121130023 has 4 divisors (see below), whose sum is σ = 138434320. Its totient is φ = 103825728.

The previous prime is 121130003. The next prime is 121130033. The reversal of 121130023 is 320031121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 320031121 = 16223 ⋅19727.

It is a cyclic number.

It is not a de Polignac number, because 121130023 - 2⁹ = 121129511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121129985 and 121130012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121130003) 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, 8652138 + ... + 8652151.

It is an arithmetic number, because the mean of its divisors is an integer number (34608580).

Almost surely, 2^121130023 is an apocalyptic number.

121130023 is a deficient number, since it is larger than the sum of its proper divisors (17304297).

121130023 is an equidigital number, since it uses as much as digits as its factorization.

121130023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17304296.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 121130023 is about 11005.9085495019. The cubic root of 121130023 is about 494.7858448514.

Adding to 121130023 its reverse (320031121), we get a palindrome (441161144).

The spelling of 121130023 in words is "one hundred twenty-one million, one hundred thirty thousand, twenty-three".