1213130122321 has 24 divisors (see below), whose sum is σ = 1384955603136. Its totient is φ = 1056038232480.

The previous prime is 1213130122313. The next prime is 1213130122381. The reversal of 1213130122321 is 1232210313121.

It is not a de Polignac number, because 1213130122321 - 2³ = 1213130122313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1213130122292 and 1213130122301.

It is not an unprimeable number, because it can be changed into a prime (1213130122301) 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, 754015 + ... + 1730548.

It is an arithmetic number, because the mean of its divisors is an integer number (57706483464).

Almost surely, 2^{1213130122321} is an apocalyptic number.

It is an amenable number.

1213130122321 is a deficient number, since it is larger than the sum of its proper divisors (171825480815).

1213130122321 is a wasteful number, since it uses less digits than its factorization.

1213130122321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2484693 (or 2484670 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1213130122321 its reverse (1232210313121), we get a palindrome (2445340435442).

The spelling of 1213130122321 in words is "one trillion, two hundred thirteen billion, one hundred thirty million, one hundred twenty-two thousand, three hundred twenty-one".