1230120210321 has 12 divisors (see below), whose sum is σ = 1784808200448. Its totient is φ = 816402649464.

The previous prime is 1230120210287. The next prime is 1230120210367.

1230120210321 is a `hidden beast` number, since 1 + 2 + 301 + 20 + 21 + 0 + 321 = 666.

1230120210321 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1230120210321 - 2²⁶ = 1230053101457 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1230120210294 and 1230120210303.

It is not an unprimeable number, because it can be changed into a prime (1230120210421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 306455445 + ... + 306459458.

It is an arithmetic number, because the mean of its divisors is an integer number (148734016704).

Almost surely, 2^{1230120210321} is an apocalyptic number.

It is an amenable number.

1230120210321 is a deficient number, since it is larger than the sum of its proper divisors (554687990127).

1230120210321 is a wasteful number, since it uses less digits than its factorization.

1230120210321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612915132 (or 612915129 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

It can be divided in two parts, 1230120 and 210321, that added together give a palindrome (1440441).

The spelling of 1230120210321 in words is "one trillion, two hundred thirty billion, one hundred twenty million, two hundred ten thousand, three hundred twenty-one".