1100320221213 has 6 divisors (see below), whose sum is σ = 1589351430654. Its totient is φ = 733546814136.

The previous prime is 1100320221163. The next prime is 1100320221227. The reversal of 1100320221213 is 3121220230011.

1100320221213 is a `hidden beast` number, since 1 + 100 + 320 + 221 + 21 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1050467155929 + 49853065284 = 1024923^2 + 223278^2 .

It is not a de Polignac number, because 1100320221213 - 2¹⁸ = 1100319959069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100320221263) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 61128901170 + ... + 61128901187.

It is an arithmetic number, because the mean of its divisors is an integer number (264891905109).

Almost surely, 2^{1100320221213} is an apocalyptic number.

It is an amenable number.

1100320221213 is a deficient number, since it is larger than the sum of its proper divisors (489031209441).

1100320221213 is a wasteful number, since it uses less digits than its factorization.

1100320221213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122257802363 (or 122257802360 counting only the distinct ones).

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

Adding to 1100320221213 its reverse (3121220230011), we get a palindrome (4221540451224).

The spelling of 1100320221213 in words is "one trillion, one hundred billion, three hundred twenty million, two hundred twenty-one thousand, two hundred thirteen".