11011121213 has 8 divisors (see below), whose sum is σ = 11179414848. Its totient is φ = 10843676064.

The previous prime is 11011121201. The next prime is 11011121237. The reversal of 11011121213 is 31212111011.

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 11011121213 - 2⁴ = 11011121197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11011121713) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185945 + ... + 237902.

It is an arithmetic number, because the mean of its divisors is an integer number (1397426856).

Almost surely, 2^11011121213 is an apocalyptic number.

It is an amenable number.

11011121213 is a deficient number, since it is larger than the sum of its proper divisors (168293635).

11011121213 is an equidigital number, since it uses as much as digits as its factorization.

11011121213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424243.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 11011121213 its reverse (31212111011), we get a palindrome (42223232224).

The spelling of 11011121213 in words is "eleven billion, eleven million, one hundred twenty-one thousand, two hundred thirteen".