121123130330123 has 16 divisors (see below), whose sum is σ = 130012384400640. Its totient is φ = 112437938835456.

The previous prime is 121123130330107. The next prime is 121123130330141. The reversal of 121123130330123 is 321033031321121.

It is a cyclic number.

It is not a de Polignac number, because 121123130330123 - 2⁴ = 121123130330107 is a prime.

It is a super-2 number, since 2×121123130330123² (a number of 29 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 = 121123130330092 and 121123130330101.

It is not an unprimeable number, because it can be changed into a prime (121123130330143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124862363 + ... + 125828676.

It is an arithmetic number, because the mean of its divisors is an integer number (8125774025040).

Almost surely, 2^{121123130330123} is an apocalyptic number.

121123130330123 is a deficient number, since it is larger than the sum of its proper divisors (8889254070517).

121123130330123 is a wasteful number, since it uses less digits than its factorization.

121123130330123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250691446.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 121123130330123 its reverse (321033031321121), we get a palindrome (442156161651244).

The spelling of 121123130330123 in words is "one hundred twenty-one trillion, one hundred twenty-three billion, one hundred thirty million, three hundred thirty thousand, one hundred twenty-three".