1101312213 has 4 divisors (see below), whose sum is σ = 1468416288. Its totient is φ = 734208140.

The previous prime is 1101312167. The next prime is 1101312217. The reversal of 1101312213 is 3122131011.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1101312213 - 2¹³ = 1101304021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1101312192 and 1101312201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101312217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183552033 + ... + 183552038.

It is an arithmetic number, because the mean of its divisors is an integer number (367104072).

Almost surely, 2^1101312213 is an apocalyptic number.

It is an amenable number.

1101312213 is a deficient number, since it is larger than the sum of its proper divisors (367104075).

1101312213 is an equidigital number, since it uses as much as digits as its factorization.

1101312213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367104074.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 1101312213 is about 33186.0243626741. The cubic root of 1101312213 is about 1032.6904285205.

Adding to 1101312213 its reverse (3122131011), we get a palindrome (4223443224).

The spelling of 1101312213 in words is "one billion, one hundred one million, three hundred twelve thousand, two hundred thirteen".