121133023123 has 8 divisors (see below), whose sum is σ = 140503976192. Its totient is φ = 102278628936.

The previous prime is 121133023069. The next prime is 121133023129. The reversal of 121133023123 is 321320331121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121133023123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121133023094 and 121133023103.

It is not an unprimeable number, because it can be changed into a prime (121133023129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129139215 + ... + 129140152.

It is an arithmetic number, because the mean of its divisors is an integer number (17562997024).

Almost surely, 2^121133023123 is an apocalyptic number.

121133023123 is a deficient number, since it is larger than the sum of its proper divisors (19370953069).

121133023123 is an equidigital number, since it uses as much as digits as its factorization.

121133023123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258279441.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 121133023123 its reverse (321320331121), we get a palindrome (442453354244).

The spelling of 121133023123 in words is "one hundred twenty-one billion, one hundred thirty-three million, twenty-three thousand, one hundred twenty-three".