121030043123 has 8 divisors (see below), whose sum is σ = 132095285616. Its totient is φ = 109975219200.

The previous prime is 121030043081. The next prime is 121030043131. The reversal of 121030043123 is 321340030121.

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

It is not a de Polignac number, because 121030043123 - 2³² = 116735075827 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121030043095 and 121030043104.

It is not an unprimeable number, because it can be changed into a prime (121030043143) 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, 2580338 + ... + 2626823.

It is an arithmetic number, because the mean of its divisors is an integer number (16511910702).

Almost surely, 2^121030043123 is an apocalyptic number.

121030043123 is a deficient number, since it is larger than the sum of its proper divisors (11065242493).

121030043123 is a wasteful number, since it uses less digits than its factorization.

121030043123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5209285.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 121030043123 its reverse (321340030121), we get a palindrome (442370073244).

The spelling of 121030043123 in words is "one hundred twenty-one billion, thirty million, forty-three thousand, one hundred twenty-three".