121030121123 has 8 divisors (see below), whose sum is σ = 123768755136. Its totient is φ = 118308340800.

The previous prime is 121030121101. The next prime is 121030121159. The reversal of 121030121123 is 321121030121.

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 121030121123 - 2⁶ = 121030121059 is a prime.

It is a super-2 number, since 2×121030121123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121030121323) 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, 4198898 + ... + 4227623.

It is an arithmetic number, because the mean of its divisors is an integer number (15471094392).

Almost surely, 2^121030121123 is an apocalyptic number.

121030121123 is a deficient number, since it is larger than the sum of its proper divisors (2738634013).

121030121123 is an equidigital number, since it uses as much as digits as its factorization.

121030121123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8426845.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 121030121123 its reverse (321121030121), we get a palindrome (442151151244).

The spelling of 121030121123 in words is "one hundred twenty-one billion, thirty million, one hundred twenty-one thousand, one hundred twenty-three".