11210312011 has 4 divisors (see below), whose sum is σ = 11218028752. Its totient is φ = 11202595272.

The previous prime is 11210311919. The next prime is 11210312017. The reversal of 11210312011 is 11021301211.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11021301211 = 67 ⋅164497033.

It is a cyclic number.

It is not a de Polignac number, because 11210312011 - 2²⁹ = 10673441099 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11210311982 and 11210312000.

It is not an unprimeable number, because it can be changed into a prime (11210312017) 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, 3856191 + ... + 3859096.

It is an arithmetic number, because the mean of its divisors is an integer number (2804507188).

Almost surely, 2^11210312011 is an apocalyptic number.

11210312011 is a deficient number, since it is larger than the sum of its proper divisors (7716741).

11210312011 is an equidigital number, since it uses as much as digits as its factorization.

11210312011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7716740.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 11210312011 its reverse (11021301211), we get a palindrome (22231613222).

The spelling of 11210312011 in words is "eleven billion, two hundred ten million, three hundred twelve thousand, eleven".