11302213121 has 4 divisors (see below), whose sum is σ = 11310770244. Its totient is φ = 11293656000.

The previous prime is 11302213081. The next prime is 11302213127. The reversal of 11302213121 is 12131220311.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7201219600 + 4100993521 = 84860^2 + 64039^2 .

It is a cyclic number.

It is not a de Polignac number, because 11302213121 - 2²² = 11298018817 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11302213121.

It is not an unprimeable number, because it can be changed into a prime (11302213127) 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, 4276580 + ... + 4279221.

It is an arithmetic number, because the mean of its divisors is an integer number (2827692561).

Almost surely, 2^11302213121 is an apocalyptic number.

It is an amenable number.

11302213121 is a deficient number, since it is larger than the sum of its proper divisors (8557123).

11302213121 is an equidigital number, since it uses as much as digits as its factorization.

11302213121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8557122.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 11302213121 its reverse (12131220311), we get a palindrome (23433433432).

The spelling of 11302213121 in words is "eleven billion, three hundred two million, two hundred thirteen thousand, one hundred twenty-one".