121230113023 has 4 divisors (see below), whose sum is σ = 128361296160. Its totient is φ = 114098929888.

The previous prime is 121230113009. The next prime is 121230113027. The reversal of 121230113023 is 320311032121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 320311032121 = 47 ⋅6815128343.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121230113023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121230113027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3565591543 + ... + 3565591576.

It is an arithmetic number, because the mean of its divisors is an integer number (32090324040).

Almost surely, 2^121230113023 is an apocalyptic number.

121230113023 is a deficient number, since it is larger than the sum of its proper divisors (7131183137).

121230113023 is an equidigital number, since it uses as much as digits as its factorization.

121230113023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7131183136.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 121230113023 its reverse (320311032121), we get a palindrome (441541145144).

The spelling of 121230113023 in words is "one hundred twenty-one billion, two hundred thirty million, one hundred thirteen thousand, twenty-three".