1230123331122 has 96 divisors (see below), whose sum is σ = 2920058709120. Its totient is φ = 344395699200.

The previous prime is 1230123331117. The next prime is 1230123331141. The reversal of 1230123331122 is 2211333210321.

It is a junction number, because it is equal to n+sod(n) for n = 1230123331092 and 1230123331101.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2666779 + ... + 3093857.

It is an arithmetic number, because the mean of its divisors is an integer number (30417278220).

Almost surely, 2^{1230123331122} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1230123331122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1460029354560).

1230123331122 is an abundant number, since it is smaller than the sum of its proper divisors (1689935377998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1230123331122 is a wasteful number, since it uses less digits than its factorization.

1230123331122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427296 (or 427289 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 1230123331122 its reverse (2211333210321), we get a palindrome (3441456541443).

The spelling of 1230123331122 in words is "one trillion, two hundred thirty billion, one hundred twenty-three million, three hundred thirty-one thousand, one hundred twenty-two".