1100120213 has 4 divisors (see below), whose sum is σ = 1125704448. Its totient is φ = 1074535980.

The previous prime is 1100120209. The next prime is 1100120227. The reversal of 1100120213 is 3120210011.

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 1100120213 - 2² = 1100120209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1100120194 and 1100120203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100120233) 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, 12792053 + ... + 12792138.

It is an arithmetic number, because the mean of its divisors is an integer number (281426112).

Almost surely, 2^1100120213 is an apocalyptic number.

It is an amenable number.

1100120213 is a deficient number, since it is larger than the sum of its proper divisors (25584235).

1100120213 is an equidigital number, since it uses as much as digits as its factorization.

1100120213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25584234.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1100120213 is about 33168.0601332065. The cubic root of 1100120213 is about 1032.3177181743.

Adding to 1100120213 its reverse (3120210011), we get a palindrome (4220330224).

The spelling of 1100120213 in words is "one billion, one hundred million, one hundred twenty thousand, two hundred thirteen".