11402321213 has 12 divisors (see below), whose sum is σ = 11809842780. Its totient is φ = 11006690112.

The previous prime is 11402321171. The next prime is 11402321221. The reversal of 11402321213 is 31212320411.

It can be written as a sum of positive squares in 2 ways, for example, as 9319585444 + 2082735769 = 96538^2 + 45637^2 .

It is not a de Polignac number, because 11402321213 - 2²⁰ = 11401272637 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 (11402921213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 125903 + ... + 196611.

It is an arithmetic number, because the mean of its divisors is an integer number (984153565).

Almost surely, 2^11402321213 is an apocalyptic number.

It is an amenable number.

11402321213 is a deficient number, since it is larger than the sum of its proper divisors (407521567).

11402321213 is an frugal number, since it uses more digits than its factorization.

11402321213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70876 (or 70829 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 11402321213 its reverse (31212320411), we get a palindrome (42614641624).

The spelling of 11402321213 in words is "eleven billion, four hundred two million, three hundred twenty-one thousand, two hundred thirteen".