1223130101321 has 12 divisors (see below), whose sum is σ = 1227322538820. Its totient is φ = 1218950169120.

The previous prime is 1223130101317. The next prime is 1223130101371. The reversal of 1223130101321 is 1231010313221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 312021670921 + 911108430400 = 558589^2 + 954520^2 .

It is not a de Polignac number, because 1223130101321 - 2² = 1223130101317 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1223130101293 and 1223130101302.

It is not an unprimeable number, because it can be changed into a prime (1223130101371) 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, 196609991 + ... + 196616211.

It is an arithmetic number, because the mean of its divisors is an integer number (102276878235).

Almost surely, 2^{1223130101321} is an apocalyptic number.

It is an amenable number.

1223130101321 is a deficient number, since it is larger than the sum of its proper divisors (4192437499).

1223130101321 is an frugal number, since it uses more digits than its factorization.

1223130101321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8024 (or 7537 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1223130101321 its reverse (1231010313221), we get a palindrome (2454140414542).

The spelling of 1223130101321 in words is "one trillion, two hundred twenty-three billion, one hundred thirty million, one hundred one thousand, three hundred twenty-one".