11420211213 has 12 divisors (see below), whose sum is σ = 16499619708. Its totient is φ = 7611739200.

The previous prime is 11420211203. The next prime is 11420211233. The reversal of 11420211213 is 31211202411.

11420211213 is a `hidden beast` number, since 11 + 420 + 21 + 1 + 213 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5935623849 + 5484587364 = 77043^2 + 74058^2 .

It is not a de Polignac number, because 11420211213 - 2¹⁰ = 11420210189 is a prime.

It is a super-3 number, since 3×11420211213³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11420211203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102238 + ... + 182463.

It is an arithmetic number, because the mean of its divisors is an integer number (1374968309).

Almost surely, 2^11420211213 is an apocalyptic number.

It is an amenable number.

11420211213 is a deficient number, since it is larger than the sum of its proper divisors (5079408495).

11420211213 is a wasteful number, since it uses less digits than its factorization.

11420211213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289164 (or 289161 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 11420211213 its reverse (31211202411), we get a palindrome (42631413624).

The spelling of 11420211213 in words is "eleven billion, four hundred twenty million, two hundred eleven thousand, two hundred thirteen".