1100323213 has 4 divisors (see below), whose sum is σ = 1200352608.
Its totient is φ = 1000293820.
The previous prime is 1100323201. The next prime is 1100323241. The reversal of 1100323213 is 3123230011.
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 a de Polignac number, because none of the positive numbers 2k-1100323213 is a prime.
It is a super-2 number, since 2×11003232132 = 2421422346133286738, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1100323313) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50014681 + ... + 50014702.
It is an arithmetic number, because the mean of its divisors is an integer number (300088152).
Almost surely, 21100323213 is an apocalyptic number.
It is an amenable number.
1100323213 is a deficient number, since it is larger than the sum of its proper divisors (100029395).
1100323213 is a wasteful number, since it uses less digits than its factorization.
1100323213 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 100029394.
The product of its (nonzero) digits is 108, while the sum is 16.
The square root of 1100323213 is about 33171.1201649869.
The cubic root of 1100323213 is about 1032.3812105109.
Adding to 1100323213 its reverse (3123230011), we get a palindrome (4223553224).
The spelling of 1100323213 in words is "one billion, one hundred million, three hundred twenty-three thousand, two hundred thirteen".