1213220323101 has 8 divisors (see below), whose sum is σ = 1618348295520. Its totient is φ = 808452949712.

The previous prime is 1213220323097. The next prime is 1213220323163. The reversal of 1213220323101 is 1013230223121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1213220323101 - 2² = 1213220323097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213220323201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90141906 + ... + 90155363.

It is an arithmetic number, because the mean of its divisors is an integer number (202293536940).

Almost surely, 2^{1213220323101} is an apocalyptic number.

It is an amenable number.

1213220323101 is a deficient number, since it is larger than the sum of its proper divisors (405127972419).

1213220323101 is a wasteful number, since it uses less digits than its factorization.

1213220323101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180299515.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1213220323101 its reverse (1013230223121), we get a palindrome (2226450546222).

The spelling of 1213220323101 in words is "one trillion, two hundred thirteen billion, two hundred twenty million, three hundred twenty-three thousand, one hundred one".