121120331123 has 8 divisors (see below), whose sum is σ = 132133868400. Its totient is φ = 110107226880.

The previous prime is 121120331083. The next prime is 121120331173. The reversal of 121120331123 is 321133021121.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 121120331123 - 2¹⁰ = 121120330099 is a prime.

It is a super-2 number, since 2×121120331123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121120331095 and 121120331104.

It is not an unprimeable number, because it can be changed into a prime (121120331173) 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, 830711 + ... + 965567.

It is an arithmetic number, because the mean of its divisors is an integer number (16516733550).

Almost surely, 2^121120331123 is an apocalyptic number.

121120331123 is a deficient number, since it is larger than the sum of its proper divisors (11013537277).

121120331123 is a wasteful number, since it uses less digits than its factorization.

121120331123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216517.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 121120331123 its reverse (321133021121), we get a palindrome (442253352244).

The spelling of 121120331123 in words is "one hundred twenty-one billion, one hundred twenty million, three hundred thirty-one thousand, one hundred twenty-three".