121123023130123 has 24 divisors (see below), whose sum is σ = 148513521669120. Its totient is φ = 98223160790160.

The previous prime is 121123023130097. The next prime is 121123023130141. The reversal of 121123023130123 is 321031320321121.

It is a de Polignac number, because none of the positive numbers 2^k-121123023130123 is a prime.

It is a super-2 number, since 2×121123023130123² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121123023130223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 86858683 + ... + 88242148.

It is an arithmetic number, because the mean of its divisors is an integer number (6188063402880).

Almost surely, 2^{121123023130123} is an apocalyptic number.

121123023130123 is a deficient number, since it is larger than the sum of its proper divisors (27390498538997).

121123023130123 is a wasteful number, since it uses less digits than its factorization.

121123023130123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175101607 (or 175101600 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 121123023130123 its reverse (321031320321121), we get a palindrome (442154343451244).

The spelling of 121123023130123 in words is "one hundred twenty-one trillion, one hundred twenty-three billion, twenty-three million, one hundred thirty thousand, one hundred twenty-three".